Dr. Hank Liers, PhD pro-c™ pro-c super antioxidant formulaFred Liers PhD pro-c antioxidant vitamin c nrf2 formulaLooking for an advanced antioxidant formula? Already using or recommending vitamin C? Curious about cellular Nrf2 activation? Look no further than PRO-C™.

PRO-C™ is among the most effective antioxidant formulas available. It is an HPDI foundational supplement that works most effectively when used with multivitamins, essential fats, and superfoods. However, it is also an excellent standalone formula that can rapidly provide the body with extremely high protection from free radicals.

We ourselves have taken PRO-C daily for many years with excellent results. Our personal experience together with detailed feedback from health professionals and end-users affirms the effectiveness of PRO-C as a super-antioxidant–vitamin C-Nrf2 activator formula.

PRO-C provides 500 mg of buffered vitamin C per capsule (buffered with calcium, magnesium, and zinc) along with grape extract (seed, skin, pulp) and green tea extract (95% polyphenols). In addition, we include a special combination of the “network antioxidants” l-glutathione (reduced), n-acetyl-l-cysteine (NAC), r-lipoic acid, and selenium. Vitamin B2 and Vitamin B6 in coenzyme forms support the enzymatic effectiveness of the “network antioxidants”. The formula works so well because this combination of ingredients leverages the antioxidant power of vitamin C, grape extract, green tea extract, and the other nutrients to act synergistically in order to maximize effectiveness.


What you may not know is the history of the development PRO-C and the scientific knowledge on which Dr. Hank Liers based his formulation of it.

Dr. Hank formulated his first product in 1989. It was a potent antioxidant formula he called PYC-C™ (sounds like “pixie”). PYC-C consisted of a combination of buffered Vitamin C (including magnesium, calcium, and zinc ascorbates) and pycnogenols from pine bark.

Much of the scientific research data Dr. Hank collected during the development of PYC-C regarding oligomeric proanthocyanidins (OPC) he later incorporated into an article (currently published on this blog) titled “Review of Scientific Research on Oligomeric Proanthocyanidins (OPC)” (rev. 2017)

By 1997 Dr. Hank had gathered a great deal of new scientific information regarding green tea catechins and the nutrients termed “network antioxidants” by Dr. Lester Packer, director of Packer Lab at University of California, Berkeley. Beyond this information, Dr. Hank studied additional research regarding how various nutrients worked together synergistically. At that point, he was ready to formulate the new, improved PRO-C™ super antioxidant formula.

PRO-C combines the ingredients of PYC-C (now known as OPC-C™) and uses grape pulp, skin, and seed extract with green tea extract (with high polyphenols >95% and EpiGalloCatechinGalate (EGCG) >45%), n-acetyl-l-cysteine (NAC), reduced glutathione (GSH), R-lipoic acid, selenium, and coenzyme Vitamins B2 and B6.

PRO-C super antioxidant formula 180 cap 90 cap

HPDI launched PRO-C™ in late 1997. It rapidly became one of our best-selling products. Our customers raved about how effective it was for them if they felt like they were “coming down with something” (like a cold, flu, virus, infection, etc.). Greater skin elasticity greatly helped pregnant women avoid stretch marks and episiotomies. Today, we highly recommend its use together with our other Foundational Supplements to ensure optimal health and anti-aging effects.


PRO-C™ super antioxidant formula is extremely synergistic, especially in so far as it increases the body’s ability to quench free radicals in its aqueous (i.e., water-based) compartments. Because antioxidants may become free radicals themselves after they have done their job, the body has developed an elaborate system for recovery of oxidized antioxidants.


Dr. Lester Packer was the primary researcher investigating the synergistic character of antioxidants. He made this statement in his interview with Dr. Richard Passwater after publication of Packer’s The Antioxidant Miracle (1999):

[The major theme of] The Antioxidant Miracle is that antioxidants work in a coordinated manner. They interact with one another, and this interaction, which we like to call the antioxidant network, is very important to the overall antioxidant defense that we possess. The key members of the antioxidant network are vitamin E and vitamin C, but there are other participants in this network. These are thiol antioxidants, antioxidants that contain sulfur groups in the body. Glutathione perhaps is the best known of these, but there are other sulfur-containing antioxidants that also are very important.”

Dr. Packer continues:

“This whole antioxidant network works like an orchestra depending on individuals who have, of course, different complements of antioxidants depending upon their nutritional regimens and the individuality of their own body metabolisms. The idea behind having a network of antioxidants is that if one antioxidant happens to be deficient the others can compensate and still keep the antioxidant defense system strong.”

The following diagram shows some of the relationships in the antioxidant network and how they support each other.

Lester Packer antioxidant network diagram Figure 1 – Dr. Packer’s Antioxidant Network

We see, for example, reduced glutathione (GSH) has the ability to reduce oxidized Vitamin C back to its unoxidized state. Vitamin C reduces oxidized Vitamin E back to its unoxidized state, and both reduces glutathione and spares it for other important functions, including detoxification and immune enhancement.

Many polyphenols (e.g., oligomeric proanthocyanidins (OPCs), anthocyanidins and catechins) found in red grape and green tea extracts spare Vitamin C and glutathione in the body, as well as operate as powerful antioxidants, anti-inflammatories, and connective tissue strengtheners.

grapes grape extract antioxidant

Grapes provide antioxidant nutrients such as polyphenols, OPCs, anthocyans, and resveratrol.

R-Lipoic Acid (see abstracts below) operates as an antioxidant both in its oxidized and reduced states, reduces the oxidized forms of both Vitamin E and Vitamin C, and and has been shown to enhance glutathione levels. Because several of these substances are able to protect Vitamin E contained in cell membranes, this combination also has a significant beneficial effect on the fat soluble antioxidant status of the body!

The nutrients in PRO-C have been carefully selected and balanced to provide optimal effects, especially as related to free radical protection, detoxification, immune system enhancement, connective tissue strengthening, and reduction of inflammation. PRO-C therefore provides outstanding nutritional support in a wide variety of conditions of poor health, as well as acts to support and maintain a state of health and well-being.

It the last several years the research results on Nrf2 activators have become well known and products developed that take advantage of these nutrients. For details see our blog article Natural Phytochemical Nrf2 Activators for Chemoprevention. Researchers have been studying specifically how enzyme-activating substances such as OPCs and anthocyans activate a transcription factor known as Nrf2 that causes the body to endogenously produce higher levels of a wide variety of protective enzymes including superoxide dismutase (SOD), catalase, and glutathione peroxidase.

Although we did not know about Nrf2 activators in 1997 when we formulated PRO-C, we have subsequently learned that four of the ingredients in the formula have powerful Nrf2 activity. These include grape seed extract, green tea extract, NAC, and r-lipoic acid. With this knowledge, we now understand that PRO-C provides both powerful external antioxidants (with extremely high ORAC5.0 values) that support redox cycles within the body, but also provides ingredients that allow the body to endogenously produce powerful protective enzymes for even greater free-radical protection and health.


PRO-C contains buffered vitamin C (in the form of powdered calcium, magnesium, and zinc ascorbates), high-potency grape extract (from grape pulp, skins, and seeds), green tea extract (with>95% polyphenols and >45% EGCG), reduced glutathione, N-Acetyl-L-Cysteine (NAC), R-lipoic acid, coenzyme forms of vitamin B2 (R5P) and vitamin B6 (P5P), and selenium.

Below we will discuss each ingredient and show some of the research that confirms its effectiveness.


Vitamin C typically is called l-ascorbic acid or ascorbate and is an essential nutrient for humans and other animal species. The term “vitamin C” refers to a number of vitamins that have vitamin C activity in animals, including ascorbic acid and its salts (e.g., magnesium ascorbate, calcium ascorbate, sodium ascorbate, etc.), and some oxidized forms such as dehydroascorbate and semidehydroascorbate.

Vitamin C is known to perform many critical functions within the body involving detoxification, tissue building, immune enhancement, pain control, and controlling or killing pathogenic organisms. It is also known to be helpful for wound and bone healing, healthy skin and eyes, fighting infections, stress control, toxic exposure, and repairing damaged tissue of all types. For much more information on the many benefits of Vitamin C see our blog article Vitamin C – An Amazing Nutrient.

Below are two abstracts that show some of the beneficial effects of Vitamin C when used with other network antioxidants:

Exhaustive physical exercise causes oxidation of glutathione status in blood: prevention by antioxidant administration.
Sastre J, Asensi M, Gasco E, Pallardo FV, Ferrero JA, Furukawa T, Vina J
In: Am J Physiol (1992 Nov) 263(5 Pt 2):R992-5

We have studied the effect of exhaustive concentric physical exercise on glutathione redox status and the possible relationship between blood glutathione oxidation and blood lactate and pyruvate levels. Levels of oxidized glutathione (GSSG) in blood increase after exhaustive concentric physical exercise in trained humans. GSSG levels were 72% higher immediately after exercise than at rest. They returned to normal values 1 h after exercise. Blood reduced glutathione (GSH) levels did not change significantly after the exercise. We have found a linear relationship between GSSG-to-GSH and lactate-to-pyruvate ratios in human blood before, during, and after exhaustive exercise. In rats, physical exercise also caused an increase in blood GSSG levels that were 200% higher after physical exercise than at rest. GSH levels did not change significantly. Thus, both in rats and humans, exhaustive physical exercise causes a change in glutathione redox status in blood. We have also found that antioxidant administration, i.e., oral vitamin C, N-acetyl-L- cysteine, or glutathione, is effective in preventing oxidation of the blood glutathione pool after physical exercise in rats.

The effect of glutathione and vitamins A, C, and E on acute skin flap survival.

Hayden RE, Paniello RC, Yeung CS, Bello SL, Dawson SM
In: Laryngoscope (1987 Oct) 97(10):1176-9

Vitamins A, C, and E act as antioxidants and as free radical scavengers in biological systems. Glutathione is involved in several reactions in vitamin metabolism and also plays an important role in cell membrane protection against lipid peroxidation by free radicals. We sought to use these natural defense mechanisms against oxygen free radicals formed during reperfusion of ischemic skin flaps. An acute axial random skin flap model was utilized in the rat. Vitamins or glutathione were administered by oral gastric tube or intravenously in the perioperative period, and survival of the flap was measured at 1 week. Glutathione, beta-carotene, ascorbic acid and alpha-D- tocopherol showed mean flap survival of 84% to 89%, each of which was significantly improved over saline controls (67% p less than .0005). The mechanisms and biochemistry of these vitamins, and their interactions with other vitamins and with glutathione, are discussed, along with clinical implications of free radical scavenging and skin flap survival.


Grape extract (seeds, skin, pulp) contain highly bioavailable bioflavonoid complexes that in research studies have been shown to have powerful antioxidant capability. The Oligomeric Proanthocyanidins (OPCs) in grape seed extract are able to strengthen collagen fibers in aging or damaged connective tissue and can act as a preventative against connective tissue degradation.

Some research indicates that anthocyans, which are found in extracts of grape skin and stems (but not in grape seed extract), can reduce oxidized glutathione while at the same time become reduced themselves. In addition, extracts of grape skin and stems (but not those of grape seed extract) contain a material called trans-resveratrol that has been shown to have chemopreventive effects.

Below we have provided some of the abstracts that are included in our broad list of relevant abstracts for PRO-C.

Protective effects of grape seed proanthocyanidins and selected antioxidants against TPA-induced hepatic and brain lipid peroxidation and DNA fragmentation, and peritoneal macrophage activation in mice.
Bagchi D, Garg A, Krohn RL, Bagchi M, Bagchi DJ, Balmoori J, Stohs SJ
In: Gen Pharmacol (1998 May) 30(5):771-6

1. The comparative protective abilities of a grape seed proanthocyanidin extract (GSPE) (25-100 mg/kg), vitamin C (100 mg/kg), vitamin E succinate (VES) (100 mg/kg) and beta-carotene (50 mg/kg) on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced lipid peroxidation and DNA fragmentation in the hepatic and brain tissues, as well as production of reactive oxygen species by peritoneal macrophages, were assessed. 2. Treatment of mice with GSPE (100 mg/kg), vitamin C, VES and beta-carotene decreased TPA-induced production of reactive oxygen species, as evidenced by decreases in the chemiluminescence response in peritoneal macrophages by approximately 70%, 18%, 47% and 16%, respectively, and cytochrome c reduction by approximately 65%, 15%, 37% and 19%, respectively, compared with controls. 3. GSPE, vitamin C, VES and beta-carotene decreased TPA-induced DNA fragmentation by approximately 47%, 10%, 30% and 11%, respectively, in the hepatic tissues, and 50%, 14%, 31% and 11%, respectively, in the brain tissues, at the doses that were used. Similar results were observed with respect to lipid peroxidation in hepatic mitochondria and microsomes and in brain homogenates. 4. GSPE exhibited a dose-dependent inhibition of TPA- induced lipid peroxidation and DNA fragmentation in liver and brain, as well as a dose-dependent inhibition of TPA-induced reactive oxygen species production in peritoneal macrophages. 5. GSPE and other antioxidants provided significant protection against TPA-induced oxidative damage, with GSPE providing better protection than did other antioxidants at the doses that were employed.

Clinical and capillaroscopic evaluation of chronic uncomplicated venous insufficiency with procyanidins extracted from vitis vinifera
Costantini A, De Bernardi T, Gotti A
In: Minerva Cardioangiol (1999 Jan-Feb) 47(1-2):39-46

BACKGROUND: The pharmacological treatment of non-complicated chronic venous insufficiency is a current and well-debated topic. The introduction of new products with action on the venous system, improved knowledge on the physiopathology of venous insufficiency and the possibility provided by new analytical instruments, have given new impulse to the consolidation of the clinical value of phlebotonics in this indication. METHODS: In light of this, 24 patients with non-complicated chronic venous insufficiency were treated with oral administration of Oligomeric Proanthocyanidins (Pycnogenols-OPC) 100 mg/day. To evaluate the therapeutic efficacy of the treatment, an instrumental evaluation by optical probe capillaroscope was employed in addition to the traditional subjective clinical parameters: swelling, itching, heaviness and pain. The videocapillaroscope examination was performed at the lower third of the leg and the first toe. Edema in the capillaroscopic field, the number of observable capillaries and the capillary dilatation were the parameter chosen to evaluate the efficacy of treatment. All patients completed the study with no reports of adverse events during the period of observation. RESULTS: The results obtained show a positive clinical response (improved or absent symptoms) in over 80% of patients, with significant improvement of symptoms already evident after the first 10 days of treatment. The mechanism of action of the OPCs explains the rapid reduction of the swelling of the lower limbs and correlated with this are the other evaluable symptoms: heaviness and itching. Particularly striking results were observed for itching and pain which completely disappeared during the course of therapy in 80% and 53% of the patients respectively. Noteworthy is the good correlation between the clinical and instrumental data, with improvement in a total of 70% of patients. CONCLUSIONS: The results obtained in the course of this clinical experience, with evident improvement already during the first weeks of treatment, the absence of adverse events added to the benefit of a once-a-day administration, justify the use of OPC in the treatment of non-complicated chronic venous insufficiency.

Polymeric procyanidin fraction from defatted grape seeds protects HepG2 cells against oxidative stress by inducing phase II enzymes via Nrf2 activation.
Younghwa Kim, Youngmin Choi, Hyeonmi Ham, Heon-Sang Jeong, Junsoo Lee
Kim, Y., Choi, Y., Ham, H. et al. Food Sci Biotechnol (2013) 22: 485. https://doi.org/10.1007/s10068-013-0105-x

Nuclear factor erythroid 2-related factor 2 (Nrf2) is an important transcription factor that regulates antioxidant response element (ARE)-driven phase II detoxification enzymes. In this study, induction of phase II enzymes via Nrf2/ARE activation in the cytoprotective effect of crude polyphenol extract (CPE), oligomeric procyanidin fraction (OPF), and polymeric procyanidin fraction (PPF) from defatted grape seeds in HepG2 cells was evaluated. Among these treatments, the treatment with PPF significantly increased Nrf2 protein expression in the nuclear fraction. Treating the samples increased heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO1) protein expression in a dose-dependent manner, and PPF significantly increased the levels of phase II enzymes. Cellular generation of reactive oxygen species (ROS) were effectively reduced by PPF. These results suggest that pretreatment with PPF shows a cytoprotective effect by inhibiting ROS production and inducing HO-1 and NQO1 expression via Nrf2 activation in HepG2 cells.


Green tea extract is obtained from the unfermented leaves of Camellia sinensis for which numerous biological activities have been reported including: antimutagenic, antibacterial, hypocholesterolemic, antioxidant, and protective against tumorigenesis. Below we have selected a few of the many abstracts we have on file showing the benefit of green tea extract.

Green tea antioxidant polyphenols catechins

Green tea leaves are high in antioxidant polyphenols and catechins.

Enhancement of antioxidant and phase II enzymes by oral feeding of green tea polyphenols in drinking water to SKH-1 hairless mice: possible role in cancer chemoprevention.
Khan SG, Katiyar SK, Agarwal R, Mukhtar H
In: Cancer Res (1992 Jul 15) 52(14):4050-2

Following the oral feeding of a polyphenolic fraction isolated from green tea (GTP) in drinking water, an increase in the activities of antioxidant and phase II enzymes in skin, small bowel, liver, and lung of female SKH-1 hairless mice was observed. GTP feeding (0.2%, w/v) to mice for 30 days significantly increased the activities of glutathione peroxidase, catalase, and quinone reductase in small bowel, liver, and lungs, and glutathione S-transferase in small bowel and liver. GTP feeding to mice also resulted in considerable enhancement of glutathione reductase activity in liver. In general, the increase in antioxidant and phase II enzyme activities was more pronounced in lung and small bowel as compared to liver and skin. The significance of these results can be implicated in relation to the cancer chemopreventive effects of GTP against the induction of tumors in various target organs.

In: Anticancer Drugs (1996 Jun) 7(4):461-8
Institutional address: Department of Pharmacology and Toxicology College of Pharmacy University of Arizona Tucson 85721 USA.

Green tea is an aqueous infusion of dried unfermented leaves of Camellia sinensis (family Theaceae) from which numerous biological activities have been reported including antimutagenic, antibacterial, hypocholesterolemic, antioxidant, antitumor and cancer preventive activities. From the aqueous-alcoholic extract of green tea leaves, six compounds (+)-gallocatechin (GC), (-)-epicatechin (EC), (-)- epigallocatechin (EGC), (-)-epicatechin gallate (ECG), (-)- epigallocatechin gallate (EGCG) and caffeine, were isolated and purified. Together with (+)-catechin, these compounds were tested against each of four human tumor cells lines (MCF-7 breast carcinoma, HT-29 colon carcinoma, A-427 lung carcinoma and UACC-375 melanoma). The three most potent green tea components against all four tumor cell lines were EGCG, GC and EGC. EGCG was the most potent of the seven green tea components against three out of the four cell lines (i.e. MCF-7 breast cancer, HT-29 colon cancer and UACC-375 melanoma). On the basis of these extensive in vitro studies, it would be of considerable interest to evaluate all three of these components in comparative preclinical in vivo animal tumor model systems before final decisions are made concerning which of these potential chemopreventive drugs should be taken into broad clinical trials.


Glutathione and NAC (a major precursor of glutathione) both provide important protection against toxins and free radicals, and can strengthen the immune system. Glutathione is considered to be one of the most important protective substances in the human body with almost 60% of liver detoxification accounted for by this key substance. In addition, glutathione is one of the most potent anti-viral substances known.

Some research has indicated that glutathione may not be able to enter easily into certain types of cells, but NAC is able to enter these cells and be converted into glutathione once inside the cell. Thus, the combination of glutathione and NAC appear to be more potent than either alone.

Below we provide some of the key abstracts we have on file regarding NAC and glutathione.

GSH rescue by N-acetylcysteine.
Ruffmann R Wendel A
In: Klin Wochenschr (1991 Nov 15) 69(18):857-62

Reduced glutathione (GSH) is the main intracellular low molecular weight thiol. GSH acts as a nucleophilic scavenger and as an enzyme-catalyzed antioxidant in the event of electrophilic/oxidative tissue injury. Therefore, GSH has a major role as a protector of biological structures and functions. GSH depletion has been recognized as a hazardous condition during paracetamol intoxication. Conversely, GSH rescue, meaning recovery of the protective potential of GSH by early administration of N-acetylcysteine (NAC), has been found to be life-saving. Lack of GSH and electrophilic/oxidative injury have been identified among the causes of the adult respiratory distress syndrome (ARDS), idiopathic pulmonary fibrosis (IPF), and the acquired immunodeficiency syndrome (AIDS). Experimental and early clinical data (in ARDS) point to the role of NAC in the treatment of these conditions. Recently, orally given NAC has been shown to enhance the levels of GSH in the liver, in plasma, and notably in the bronchoalveolar lavage fluid. Rescue of GSH through NAC needs to be appreciated as an independent treatment modality for an array of different disease, all of which have one feature in common: pathogenetically relevant loss of GSH.

Cysteine and glutathione concentrations in plasma and bronchoalveolar lavage fluid after treatment with N-acetylcysteine.
Bridgeman MM Marsden M MacNee W Flenley DC Ryle AP
In: Thorax (1991 Jan) 46(1):39-42

N-acetylcysteine (600 mg/day) was given to patients by mouth for five days before bronchoscopy and bronchoalveolar lavage to determine whether N-acetylcysteine could increase the concentrations of the antioxidant reduced glutathione in plasma and bronchoalveolar lavage fluid. Bronchoalveolar lavage was performed 1-3 hours (group 2, n = 9) and 16-20 hours (group 3, n = 10) after the last dose of N-acetylcysteine and the values were compared with those in a control group receiving no N-acetylcysteine (group 1, n = 8). N-Acetylcysteine was not detected in plasma or lavage fluid. Plasma concentrations of cysteine, the main metabolite of N-acetylcysteine and a precursor of reduced glutathione, were greater in the groups receiving treatment (groups 2 and 3) than in group 1. Cysteine concentrations in lavage fluid were similar in the three groups. Concentrations of reduced glutathione were greater in both plasma and lavage fluid in group 2 than in group 1. These data suggest that N-acetylcysteine given by mouth is rapidly deacetylated to cysteine, with resulting increases in the concentrations of cysteine in plasma and of reduced glutathione in plasma and the airways, which thus temporarily increase the antioxidant capacity of the lung.


R-Lipoic Acid is normally made at low levels in the human body, where it functions primarily as an important metabolic nutrient in the conversion of pyruvic acid into acetyl coenzyme A. As such, it plays a crucial role in the metabolism of both fats and carbohydrates into energy. In addition, r-lipoic acid functions as an extremely powerful antioxidant capable of trapping many different types of free radicals in the body.

Because it is both water and fat soluble, lipoic acid is able to operate in a broader range of body tissues than most other antioxidants. Its small size allows lipoic acid to enter areas of the body not easily accessible to many other substances; this allows lipoic acid, for example, to enter the cell nucleus and prevent free-radical damage to DNA.

Because it is such a powerful antioxidant and can easily function as such in both a reduced and oxidized state, lipoic acid is able to protect other important antioxidants such as glutathione, Vitamin E, and Vitamin C. R-lipoic acid is also able to chelate heavy metals such as lead, cadmium, mercury, free iron, and free copper out of the body.

Below we provide relevant scientific abstracts from our database regarding R-Lipoic acid.

Alpha-Lipoic acid as a biological antioxidant.
Packer L Witt EH Tritschler HJ
In: Free Radic Biol Med (1995 Aug) 19(2):227-50

alpha-Lipoic acid, which plays an essential role in mitochondrial dehydrogenase reactions, has recently gained considerable attention as an antioxidant. Lipoate, or its reduced form, dihydrolipoate, reacts with reactive oxygen species such as superoxide radicals, hydroxyl radicals, hypochlorous acid, peroxyl radicals, and singlet oxygen. It also protects membranes by interacting with vitamin C and glutathione, which may in turn recycle vitamin E. In addition to its antioxidant activities, dihydrolipoate may exert prooxidant actions through reduction of iron. alpha-Lipoic acid administration has been shown to be beneficial in a number of oxidative stress models such as ischemia-reperfusion injury, diabetes (both alpha-lipoic acid and dihydrolipoic acid exhibit hydrophobic binding to proteins such as albumin, which can prevent glycation reactions), cataract formation, HIV activation, neurodegeneration, and radiation injury. Furthermore, lipoate can function as a redox regulator of proteins such as myoglobin, prolactin, thioredoxin and NF-kappa B transcription factor. We review the properties of lipoate in terms of (1) reactions with reactive oxygen species; (2) interactions with other antioxidants; (3) beneficial effects in oxidative stress models or clinical conditions.

Regeneration of glutathione by α-lipoic acid via Nrf2/ARE signaling pathway alleviates cadmium-induced HepG2 cell toxicity.
Zhang J, Zhou X, Wu W, Wang J, Xie H, Wu Z.
In: Environ Toxicol Pharmacol. 2017 Apr;51:30-37. doi: 10.1016/j.etap.2017.02.022. Epub 2017 Feb 27.

Alpha-lipoic acid (α-LA) is an important antioxidant that is capable of regenerating other antioxidants, such as glutathione (GSH). However, the underlying molecular mechanism by which α-LA regenerates GSH remains poorly understood. The current study aimed to investigate whether α-LA regenerates GSH by activation of Nrf2 to alleviate cadmium-induced cytotoxicity in HepG2 cells. In the present study, we found that cadmium induced cell death by depletion of GSH through inactivation of Nrf2. Addition of α-LA to cadmium-treated cells reactivated Nrf2 and regenerated GSH through elevating the Nrf2-downstream genes γ-glutamate-cysteine ligase (γ-GCL) and GR, both of which are key enzymes for GSH synthesis. However, blocking Nrf2 with brusatol in the cells co-treated with α-LA and cadmium reduced the mRNA and the protein levels of γ-GCL and GR, thus suppressed GSH regeneration by α-LA. Our results indicated that α-LA activated Nrf2 signaling pathway, which upregulated the transcription of the enzymes for GSH synthesis and therefore GSH contents to alleviate cadmium-induced cytotoxicity in HepG2 cells.


Selenium has been shown by clinical research to be a key mineral in the body’s defenses against free radicals and has been shown to be a major factor in reducing the symptoms of HIV infections and in the prevention of tumors. Selenium is used in conjunction with glutathione to form the powerful enzyme glutathione peroxidase that is responsible for detoxification of peroxides formed during the process of aerobic metabolism in humans and other animals.

Serum selenium concentrations in rheumatoid arthritis.
In: Ann Rheum Dis (1991 Jun) 50(6):376-8

O’Dell JR, Lemley-Gillespie S, Palmer WR, Weaver AL, Moore GF, Klassen LW

Selenium is a trace element and an essential part of the enzyme glutathione peroxidase, which protects cells from oxidative damage. Selenium has been shown to have antiproliferative, anti-inflammatory, antiviral, and immune altering effects. Serum selenium concentrations in 101 patients with seropositive rheumatoid arthritis were found to be significantly lower than those in 29 normal, healthy controls (mean (SD) 148 (42) v 160 (25) micrograms/l) and also lower than those in eight patients with fibrositis (148 (42) v 166 (25) micrograms/l). It is speculated that serum selenium concentrations may modulate the effect of viral or other infections in subjects with the appropriate genetic background and in this way enhance the development or progression of rheumatoid arthritis.

Studies on selenium in top athletes.
Dragan I, Ploesteanu E, Cristea E, Mohora M, Dinu V, Troescu VS
In: Physiologie (1988 Oct-Dec) 25(4):187-90

The authors performed a controlled trial in 18 top athletes (9 weight lifters and 9 rowers, girls) in order to make evident some chronic and acute effects (antioxidant) of selenium. Nonprotein–SH (essential glutathione), lipid peroxides (MDA-malondialdehyde), glucose-6-phosphate dehydrogenases (G-6-PDH) and fructose-1,6- diphosphate aldolase in serum, have been recorded initially on basal conditions, after 3 weeks of treatment (100 micrograms/day selenium or placebo) and again after 3 weeks of treatment, also on basal conditions, when crossing over the groups (between a free interval of 10 days). In another trial we registered these parameters on basal conditions and after two hours of hard training accompanied by a per oral administration of 150 micrograms selenium (respectively placebo). The results show significant changes under selenium treatment of the peroxides, G-6-PDH and light changes, not significant of the nonprotein–SH, changes which could suggest an antioxidant effect of this element.


Vitamin B2 as coenzyme riboflavin-5-phosphate is a key vitamin that supports the regeneration of glutathione (via glutathione reductase). Vitamin B6 as coenzyme pyridoxal-5-phosphate is a key vitamin that supports the ability of glutathione to combine with toxic substances (via glutathione transferase) in the process of eliminating them from the body. They are especially effective in their coenzyme forms which allows them to be directly utilized by the body starting in the intestinal tract.


Magnesium, zinc, and calcium synergistically work with (and enhance the effects of) the other ingredients in PRO-C. Minerals are especially needed as active components of enzymes that drive metabolic activity. For example, magnesium is required in the functioning of more than 325 types of enzymes.


HIGHLY EFFECTIVE VITAMIN C FORMULA PLUS ANTIOXIDANTS. A complete vitamin C formula, a powerful antioxidant Formula, and Nrf2 activator combined in a single advanced supplement!

POWERFUL, SYNERGISTIC FREE-RADICAL QUENCHING FORMULA. PRO-C™ components work together to quench free radicals in your body. Vitamin C enables grape seed extract to function more effectively, and conversely grape seed extract potentiates vitamin C. Green tea extract boosts ORAC (Oxygen Radical Absorbance Capacity) value.

PROVIDES SIGNIFICANT AMOUNTS OF POWERFUL NRF2 ACTIVATORS (from Grape Extract, Green Tea Extract, NAC, and R-Lipoic Acid) that stimulate the production of the body’s own protective antioxidants including superoxide dismutase, catalase, glutathione peroxidase, and heme oxygenase.

SUPERIOR, BUFFERED (NON-ACIDIC) FORM OF VITAMIN C. Mineral Ascorbates never acidify your body, keeping you pH balanced. Staying alkaline is an important element in maintaining a healthy body.

RAPID ASSIMILATION. Capsule form ensures rapid uptake and assimilation in the body. You may also empty capsule contents into water, food, or directly Into mouth, if desired. Good, mildly tart taste!


One (1) vegetarian capsule of PRO-C provides the following percentages of the Daily Value:

Vitamin C (from mineral ascorbates) 500 mg 833%
BioVin® Grape Extract 30 mg *
Green Tea Extract 30 mg *
Calcium (from calcium ascorbate) 23 mg 2.3%
Magnesium (from magnesium ascorbate) 23 mg 5.7%
L-Glutathione (reduced) 20 mg *
N-Acetyl-L-Cysteine (NAC) 15 mg *
R-Lipoic Acid 5 mg *
Zinc (from zinc ascorbate) 2 mg 13%
Vitamin B2 (from riboflavin-5′-phosphate) 1 mg 118%
Vitamin B6 (from pyridoxal-5′-phosphate) 1 mg 50%
Selenium (from l-selenomethionine) 10 mcg *

* No established Daily Value

DIRECTIONS: As a dietary supplement take 1–3 capsules or more daily in divided doses (i.e., spread out over the day), or as recommended by a health care professional. It initially may be useful to take up to 6 capsules per day in divided doses for one week. The contents of the capsule may be emptied into juice or food, as needed.

INGREDIENTS: PRO-C™ SUPER ANTIOXIDANT FORMULA contains only the highest-quality USP grade magnesium ascorbate, USP grade calcium ascorbate, BioVin® grape extract (greater than 75% polyphenols, 55% OPC, greater than 3.5% anthocyanidins from grape pulp, skins, and seeds, and a small amount of trans resveratrol), green tea extract (95% min. polyphenols and 45% min. EGCG), l-glutathione (reduced), USP grade n-acetyl-l-cysteine, USP grade zinc ascorbate, r-(+)-lipoic acid, riboflavin-5′-phosphate, pyridoxal-5′-phosphate, l-selenomethionine, the smallest amounts of microcrystalline cellulose and silica in a vegetarian capsule.

PRO-C™ does not contain wheat, rye, oats, corn antigen, barley, gluten, soy, egg, dairy, yeast, sugar, sulfates, phosphates (other than coenzyme forms), fats, chlorides, GMOs, wax, preservatives, colorings, or artificial flavorings.

Click here to order PRO-C™.



The Antioxidant Miracle. Lester Packer, PhD, and Carol Coleman. New York: John Wiley and Sons, 1999.

How to Live Longer and Feel Better. Dr. Linus Pauling. Corvallis, OR: Oregon State University Press, 2006.


Review of Scientific Research on Oligomeric Proanthocyanidins (OPC)” (rev. 2017) by Hank Liers, PhD

“Vitamin C – An Amazing Nutrient” by Hank Liers, PhD

PRO-C™ and Ultimate Protector™ – Comparison by Hank Liers, PhD

“Antioxidant Cocktail Update: Part 1: The Take Home Message is to Use Antioxidant Supplements”
(An interview of Dr. Lester Packer by Richard A. Passwater, PhD, Whole Foods Magazine 1999)


PRO-C™ / Vitamin C Abstracts

Catechin Abstracts

N-Acetyl-L-Cysteine (NAC) Abstracts

Lipoic Acid Abstracts


(Therapeutic Nutrition Based Upon Biochemical Individuality)


PRO-C™Super Antioxidant Formula

Ultimate Protector™Nrf2 Activator Formula


HPDI Vitamin C Products



Fred Liers PhD quicksilver liposomal formulasOne of the most significant developments for nutrient uptake and assimilation is the advent of liposomal delivery systems. Once in the range of 300–5,000 nanometers, the latest liposomes are now just 20–100 nanometers (nm)!

The significance of these small liposomes—tiny bilayer lipid structures—is that there is a major increase in the amount of nutrient delivery to cells. That is, small liposomes show significantly greater efficiency at intracellular delivery of encapsulated compounds.

Liposomal delivery systems have evolved rapidly and now offer major advantages over nutritional supplements delivered by standard means—like capsules, tablets, powders, and liquids (e.g., tinctures).

Liposomal delivery systems first utilized multi-lamellar vesicles (MLV) ranging ins size from 300–5,000 nanometers. Later, “large” unilamellar vesicles (LUV) (100–300 nanometers) were developed. Products containing LUVs are more effectively assimilated than MLVs.

As noted, lipsomal technologies have shrunk liposome sizes to 20–100 nanometers (nm), the category size for small unilamellar vesicles (SUV). This means the body can far more easily assimilate nutrients delivered liposomally when the particle sizes are up to 10 times smaller than already effective liposome sizes.

Small liposomes (SUV) have a long circulation half-life and better cellular accumulation. Small lipid particles have the fastest uptake kinetics and can participate in paracellular (between cells) transport. The nutritional liposome industry is rapidly moving toward the use of small liposomes.

Key Point: Small liposomes (SUV) are significantly more efficient at intracellular delivery of encapsulated compounds. In a recent study with carefully sized liposomes, cellular uptake increased nine-fold as liposome size was decreased from 236 nm to 97 nm and was 34 fold higher at 64 nm.

Nutrients that can be delivered liposomally range from vitamin C and glutathione to many types of adaptogenic and medicinal herbs.

Benefits of Liposomal Delivery

  • Rapid update, assimilation, and movement into cells
  • Oral intake bypasses digestive system—nutrients go directly into body
  • High levels of nutrients assimilated
  • Reduced dosages and less “wasted” product
  • Nutrients penetrate smallest compartments in the body
  • Nutrients circulate widely
  • Precise intra-oral delivery
  • Simple manual pump from glass bottle
  • Easy water dispersability when desired
  • Good tasting!

Liposomal delivery systems are the future of nutritional supplements given all the advantages they confer. HPDI recognizes the value of liposomal products, and now offers the best formulas available—from Quicksilver Scientific, Inc.—to our customers.


HPDI offers four liposomal formulas from Quicksilver Scientific, the leader in nanoliposomal delivery systems. Each formula offers unparalleled uptake and assimilation—and good taste!—via inta-oral delivery. These products include:

Quicksilver liposomal formulas

HPDI offers four liposomal formulas from Quicksilver Scientific.

Liposomal Vitamin C with R-Lipoic Acid (mean size 50–100nm): Quicksilver Scientific’s Etheric Delivery™ system for Liposomal Vitamin C (with R-Lipoic Acid) is the most absorbable form of professional-grade Vitamin C. Vitamin C is essential to any detoxification program because it feeds the system that eliminates toxins. It is also very effective in removing lead and other heavy metals from our system and fighting off the free radicals that form in the liver during the first phase of detoxification.

R-Lipoic Acid (as sodium R-Lipoate) has an exceptionally well-documented ability to upregulate the glutathione system via the Nrf2 nuclear transcription pathway. This combination of liposomal vitamin C and R-Lipoate in a nanoliposomal delivery system potently harnesses the potential of Vitamin C to the power of a fully functioning glutathione system.

The absorption of conventional oral Vitamin C diminishes rapidly as the dose increases (e.g., about 19% for 1000 mg oral vitamin C). Nanosphere delivery greatly increases absorption and for some compounds can provide higher intracellular delivery than an IV administration.

Quicksilver Vitamin C

Quicksilver Liposomal Vitamin C with R-Lipoic Acid

Suggested Usage: General use for antioxidant and detoxification function, take eight pumps per day (1,000 mg of Vitamin C and 50 mg of R-Lipoate). For advanced intermittent use, use up to 50 pumps per day (6,250 mg Vitamin C and 312.5 mg R-Lipoate) or more, in divided doses throughout the day. For detoxification protocols, especially with metal toxicities, build dosage gradually, starting from low doses, as they are tolerated. If strong detoxification reactions are observed, back off dosage. Children should start at approximately 1/4 of adult (two pumps per day) dosage and work up. For topical application, one pump can cover the face for a daily treatment, or use several pumps as a mask and leave on for 10–15 minutes; skin can be re-wetted and left for another 10 minutes before rinsing off excess.

Liposomal Glutathione: Quicksilver’s Phospholipid Encapsulation Etheric Delivery system protects glutathione from digestive enzymes that otherwise inhibit absorption of oral glutathione supplementation. In cell cultures, liposomal products have demonstrated over 100 times more efficiency for intracellular delivery than IV-based liposomal glutathione.

Quicksilver’s Liposomal Glutathione comes with a precision pump to accurately deliver 50 mg of reduced glutathione and 68 mg of injectable-grade essential phospholipids (derived from sunflower oil) per pump. The patent-pending process, plus a natural lemon flavoring, allows this product to be taken intra-orally for maximum absorption without the foul sulfur taste typical of liposomal glutathione products. The formula can be taken every 3–4 hours for even delivery throughout the day. One bottle delivers 100, 0.5 ml doses.

Quicksilver Liposomal Glutathione

Quicksilver Liposomal Glutathione with Lemon Mint

Suggested Usage: For general antioxidant and detoxification protection, use eight pumps per day (400 mg glutathione). For advanced protection, use up to 20 per day (1,000 mg glutathione) or more, in divided doses throughout the day. For large doses, take two pumps at a time to allow for maximum oral absorption, and hold at least 30 seconds before swallowing. Children should start at approximately 1/4 of adult (two pumps per day) dosage and work up.

Liposomal Colorado Hemp Oil: This product uses non-THC (<0.3%) cannabidiol (CBD) from all-natural Colorado Hemp Oil. CBD is the non-psychoactive part of the industrial hemp plant. Quicksilver Scientific’s liposomal delivery of Nanoemulsified Colorado Hemp Oil far outpaces tinctures and is faster, stronger and more effective. Cannabidiol interacts with our body’s naturally occurring cannabinoid receptors to aid with pain relief and enhanced feelings of well being. The advanced technology behind this groundbreaking liquid delivery method makes for precise dosing and immediate effect.

Because of the known interaction of CBD with these cannabidiol receptors, much new research has focused on CBD’s receptor-mediated neuro-protective, antiemetic, and analgesic properties, and of its effect on mood and other aspects of mental health.

New research on gene transcription modulation offers an even deeper look into the biochemical mechanisms at work when ingesting CBD. Research in this vein has shown more than 1,000 genes that are differentially upregulated by CBD (a more than ten-fold increase than those affected by THC). In general, the effects increased cell stress responses—including antioxidant-defense and detoxification genes (mainly via EhRE/ARE-Nrf2 induction)—and downregulated many inflammation-mediating genes. These effects combined with CBDs NMDA-receptor-stabilizing effects, show great promise for its use in calming the neuro-inflammatory responses accompanying neurotoxic and chronic illness states.

Quicksilver Nanoemulsified Colorado Hemp Oil

Nanoemulsified Colorado Hemp Oil

Suggested Use: Take 1–4 pumps by mouth, holding for 30 seconds before swallowing. Repeat if needed. Four pumps contain 30 mg of Hemp Extract (aerial parts) and 12 mg of Phytocannabinoid Diols. There are 25 four-pump servings per container. Best taken on an empty stomach 10 minutes before meals. May be stirred into a small amount of water. Once opened, use within 60 days. Store at room temperature and away from light.

Liposomal NanoMojo (adaptogenic blend): Dr. Christopher Shade, PhD of Quicksilver Scientific, collaborated with master herbalist Dan Moriarty of Sun Horse Energy to create NanoMojo, a groundbreaking functional medicine product. By combining Moriarty’s unique adaptogenic formulation with Dr. Shade’s state-of-the-art liposomal encapsulation, they’ve overcome the limitations of poor oral adsorption and made the phytochemicals quickly available at the cellular level. This new innovative blend of adaptogens from around the world is maximized for effectiveness.

Adaptogens are non-toxic phytochemicals that help the body achieve homeostatic balance under adverse conditions that would typically be associated with sympathetic (fight or flight) reactions. They help regulate natural harmony, adrenal balance, and stress accommodation (resistance to stress). In fact, adaptogenic herbs have been used in Ayurvedic medicine for more than 4,000 years and Chinese medicine for nearly 3,000 years to increase energy (chi) and concentration.

Scientific literature reports that adaptogenic herbs play significant roles in decreasing markers of stress-activated protein kinases, cortisol, and nitric oxide. These markers indicate a lowered level of systemic stress and inflammation and decreased symptoms of an over-taxed adrenal system.

NanoMojo contains the following adaptogenic herbs: Açaí, Lyceum (Goji) fruit, Gynostemma (Jiaogulan) (aerial parts), American Ginseng (root), Siberian Ginseng (root), Schisandra (fruit), Licorice (root), Rhodiola (root), Astragalus (root), Reishi (fruiting body), Catuaba (bark), Stinging Nettle (aerial parts), Saw Palmetto (fruit), Guarana (seed), Ashwagandha (root), Tribulus (aerial parts), Epimedium (aerial parts), Yohimbe (bark), and Organic Maple (sap) syrup.

NanoMojo helps your body adapt to the various conditions that cause stress, something most of us experience daily. This liposomal formulation is the culmination of more than eight years of research and development. Not only is it effective, but it also tastes very good.

Quicksilver liposomal NanoMojo adaptogens

NanoMojo Liposomal Adaptogenic Blend

Directions: Take two pumps twice daily, or more. May be mixed into a small amount of water. Best taken on an empty stomach. Once opened, use within 60 days.


The advent of small liposomes means significantly greater uptake and assimilation of nutrients than ever before. This means you stand to benefit greatly from advanced intra-orally delivered nanoliposomal formulas like those developed by Quicksilver Scientific, Inc.





Recent Advances in Liposome Technology (HPDI blog)


Quicksilver Scientific Liposomal Formulas (HPDI website)

Liposomal Vitamin C with R-Lipoic Acid

Liposomal Glutathione with Lemon Mint

Nanoemulsified Colorado Hemp Oil

NanoMojo Liposomal Adaptogenic Blend




Fred Liers PhD foundational supplements nutritionHPDI foundational supplements are designed to provide a complete range of essential nutrients that complement a healthy diet and lifestyle. They help ensure sufficient levels of nutrients required for good health.

We define foundational supplements as basic or “core” supplements that should be part of everyone’s daily regimen. They are the foundation of a complete nutritional supplement program.

HPDI has a three-tiered system of nutritional supplements: 1) Foundational Supplements, 2) Enhancement Formulas, and 3) Specific-Condition Formulas. All three tiers comprise a complete nutritional supplement program.

When properly combined, these three tiers of nutritional supplements help create optimal health. This month, I explain how to use HPDI foundational supplements, the base or bottom tier of the system (see cone diagram below).

The HPDI supplement system can be visualized as a cone having a base of Foundational Supplements ascending toward an apex of Enhancement Formulas and Specific Condition Formulas.

foundational supplements HPDI system

The HPDI Supplement System includes six types of Foundational Supplements forming its base.


My intent is to guide consumers and health care professionals to decide the foundational supplements that are best for their purposes, and that provide the most effective results.

For anyone new to HPDI’s Foundational Supplements system, we recommend six basic types of supplements. The six categories are: 1) multivitamin formulas, 2) vitamin C / antioxidant formulas, 3) essential fats, 4) high-RNA foods (Rejuvenate! superfoods), 5) gut health formulas, and 6) hydrogen formulas.

We established the original three types of foundational supplements about 1988. We have always suggested that clients and health professionals take and/or recommend multivitamins, vitamin C and antioxidants, and essential fats.

About 10 years ago, we added high-RNA foods (like Rejuvenate! superfoods) as a fourth type of foundational supplement because research indicates dietary nucleic acids are essential nutrients—see our blog articles on nucleic acids, Benjamin S. Frank, MD, PhD, and about Rejuvenate! superfoods (Original, Plus, and Berries & Herbs).

Two categories of foundational supplements are new: gut health formulas and hydrogen formulas. Hank wrote an article (Amending the HPDI Foundational Program) about these changes in April. We added these two categories after much consideration regarding their benefits, and have written extensively about them in this blog (see resources section below).

The entire HPDI supplement system is depicted (above) as a cone. The six types of foundational supplements form the base of the cone. Enhancement Formulas and Specific-Condition formulas sit above toward the apex.

ultimate protector foundational supplements

Ultimate Protector Nrf2 formula is a foundational supplement in the vitamin C / antioxidant category.


I use all six types of HPDI foundational supplements. I take the following supplements (below) and present them here as an example of how they can be integrated into a complete supplement regimen. Foundational Supplements I take:

1. Multivitamin: Hank & Brian’s Mighty Multi-Vite! (4 per day in divided doses)

2. Vitamin C / antioxidants: PRO-C (6-8 per day) and Ultimate Protector Nrf2 activator (8-12 per day)

3. Essential Fats: Essential Fats Plus E (4 per day)

4. Rejuvenate!™ superfood: All three Rejuvenate! superfoods (2-8 scoops per day)

5. Gut Health: RESTORE For Gut Health (1-2 ounces per day) and Prescript-Assist™ probiotic (soil-based organisms) (1-3 per week)

6. Hydrogen: Megahydrate (2-6 per day)

Taking one supplement from each of the six foundational supplement categories builds, supports, and maintains optimal health.

We at HPDI recommend everyone take one of each type of foundational supplement. That is, we suggest an individual select for personal use a multivitamin, vitamin C/antioxidant formula, essential fats formula, Rejuvenate!™ superfood (or other high-RNA superfood), hydrogen product, and at least one gut health product (depending on their gut-health needs).

Similarly we suggest health care professionals recommend for their clients one of each of the six types of foundational supplements.

The other two categories in the HPDI nutritional supplement system are Enhancement Formulas and Specific-Condition Formulas (see cone diagram). These are not foundational supplements. However, I include the supplements I take in these categories for the sake of completeness, as well as to show how Enhancement and Specific-Condition Formulas integrate with Foundational Supplements to form a complete supplement program providing a wide-range of essential nutrients required for health.

Enhancement Formulas I take include: B-Complex-50 (B complex), Myo-Mag (magnesium/malic acid), Ubiquinol-50, Bone Guardian, and Vitamin D3 Plus.

Specific Condition Formulas I take include: Joint Health Formula, Allergy Support Formula, Eye & Vision Formula, Intestinal Rejuvenation Formula, and Warrior Mist (pain topical), and Warrior Sleep (sleep topical).

While I take supplements from all three categories (Foundationals, Enhancements, and Specific-Condition) in the HPDI supplement system, I always prioritize foundational supplements—I take them first—because they are base on which my personal supplement program rests.

Foundational supplements should be the base on which your supplement program—or those of your clients—rests, as well.

We have seen the results of taking a complete set of foundational supplements. They work because the nutrients they provide are needed by everyone.

HPDI foundational supplements multivitamin

Muti Two Caps is a high-potency multi with coenzyme forms for optimal utilization in the body.


Individuals who take all types of foundational supplements do best in terms of optimizing health. The reason is that all six types provide nutrients required for good health.

I can attest that HPDI Foundational Supplements are effective for improving or maintaining good health. In addition, I have witnessed numerous instances where individuals benefit most greatly when taking all four–and now all six–types of foundational supplements.

Each of the six categories of foundational supplement provide unique benefits. Yet, each performs functions required by the human body for good health. That is one reason when they are combined they exert synergistic effects for health going far beyond the benefits of using, one, two, or three of the types of foundational supplements.


I talk to people who may or may not take a multivitamin. And they may or may not take vitamin C. Yet, they may take calcium for their bones, glucosamine for their joints, and lutein for their eyes. Or they may take a low-potency, off-the-shelf multivitamin providing merely the RDA for all nutrients.

There is nothing wrong with individuals taking supplements they regard as important or useful. But that cannot guarantee that a wide range—and sufficient levels—of nutrients necessary for health are available to the body on a regular basis.

In fact, I regard the supplement intake programs of most persons to be “hit-or-miss.” They may consume nutrients important for a few functions in the body, yet fail to obtain other essential nutrients required for the nutrients they take to work most effectively. We have written extensively on this topic on our website and in blog articles (see below).

Not taking regularly a complete set of foundational supplements likely means key nutrients (and key levels of nutrients) go missing. Over time, this means fewer and lower levels of nutrients available to support the body’s needs for them at levels known to sustain the good health.

The best way to ensure a sufficient range of nutrients at plentiful levels is to take foundational supplements. After a baseline of nutrients is established by taking foundational supplements, additional supplements can be added, as necessary.

rejuvenate superfood foundational supplements

High-RNA foods like Rejuvenate! PLUS superfood provide dietary nucleic acids important for health.


After obtaining sufficient levels of basic nutrients required for health, then a person can add (or you can recommend) specific nutrients or formulas that target certain problems or issues. This is the basis for HPDI development of Enhancement Formulas and Specific-Condition Formulas.

Nutritional supplements in the categories of Enhancement Formulas and Specific-Condition Formulas therefore “stack” on top of HPDI’s Foundational Supplements (see cone diagram above). In this way, a complete nutritional supplement program begins with the most essential nutrients and continues with customizations based on the unique needs of an individual.


Enhancement Formulas in the HPDI system are supplements we regard as falling into the next tier in terms of importance, at least for most people. They do not necessarily provide essential nutrients, and yet many people (including myself) benefit significantly from them.

Enhancement Formulas include: magnesium formulas (topical and capsule), Vitamin D3 Plus, Nascent Iodine, Vitamin B12 (methylcobalamin), mushroom-based products (like Immune-Assist™), Prolyt (proteolytic enzymes), Digase (plant-based enzymes), and Warrior Mist (topical pain reliever), and many other formulas.


In the HPDI system, individuals can add (in a modular way) various formulas and single nutrients designed to support a particular set of needs or a target a specific condition.

We offer a complete range of supplements (almost 100) including a range of supplements formulated to address specific conditions. These include Joint Health Formula, Eye & Vision Formula, Blood Sugar Support, Allergy Support Plus, Prosta Plus, and many other formulas.


HPDI Foundational Supplements collectively form the base tier of a complete nutritional supplement system comprised of three tiers: 1) Foundational Supplements (six types), 2) Enhancement Formulas (or simply “Enhancements”), and 3) Specific-Condition Formulas.

Foundational Supplements are necessary because they provide nutrients foundational to health. Taking them daily or recommending your clients take them daily can help mean big differences in health, nutrition, and quality of life.

We at HPDI design our nutritional supplements to be the most effective dietary supplements available. HPDI products are known for: 1) Advanced Formulation (including use of superior forms of nutrients), 2) Ultra-High Purity, 3) Avoidance of Harmful Ingredients, and 4) being made with Good Manufacturing Practices (GMP). For more details, please see The HPDI Difference and our Statement on Additives (Excipients).

At least 40 of HPDI’s products are formulated by Dr. Hank Liers. They fall in all categories in HPDI’s supplement system. They can be found under “Dr. Hank Liers original formulas.”

omega plus foundational supplement

Omega Plus provides exceptionally well-balanced omega-3 and omega-6 fatty acids.


We frequently get questions from HPDI clients and resellers regarding foundational supplements. These questions include:

“Why did you add gut health and hydrogen products to your foundational supplements program?”
We found it necessary to add categories for gut health and hydrogen because they provide nutrients that are support the body and help ensure the foundational supplement system supports health most effectively. You can read more in previous blog articles (see below).

“Which is the better multivitamin: Multi Two or Mighty Multi-Vite!™?”
It depends on whether you need more B vitamins or antioxidants. Multi Two provides more B vitamins and Mighty Multi-Vite™ provides more antioxidants and cofactors. I take a separate HPDI B-Complex-50 formula, so I take Mighty Multi-Vite!™ as my primary multivitamin.

“What are the differences between Rejuvenate!™ Original, PLUS, and Berries & Herbs superfoods?”
They each provide about 340 mg of dietary nucleic acids. Original is the “greenest” with a large percentage of dietary nucleic acids coming from chlorella and spirunlina. PLUS is our most popular and 30% is identical to Original with more protein and a built-in multivitamin complex. Berries & Herbs contains no greens, yet more nucleic acids (390 mg), protein, and a built-in multivitamin. See our Rejuvenate! comparison page for more information.

“Should I take a vitamin C formula with antioxidants like PRO-C or one with Nrf2 activators like Ultimate Protector?”
Both provide vitamin C and Nrf2 activators, but Ultimate Protector provides more types of Nrf2 activators. Ultimate Protector capsules are smaller than PRO-C capsules, so a daily dose may require taking more capsules.

“How important are hydrogen supplements?”
Very important for energy production, recovery, antioxidant functions, and gut health. Hydrogen supplements like Active H2 and Megahydrate ensure high levels of hydrogen are available in the body.

What are your best products for supporting gut health?
It depends on your needs: cleansing (Intestinal Rejuvenation Formula), probiotic/microbiome support (Prescript-Assist™), or tightening tight junctions in the gut (RESTORE)? We offer products for all these purposes.

These are just a few questions frequently asked about HPDI foundational supplements. If you need more information about products, please contact the HPDI office (800-228-4265) or email support@healthproductsdistributors.com.

You can also contact Fred Liers, PhD (520-400-0155) or Hank Liers, PhD (formulator) with questions you may have regarding products, ingredients, or formulation.


Foundational Supplements

HPDI Full Product Overview

The Need for Foundational Supplements (.pdf)

The HPDI Difference (4 Pillars of Formulation)


Amending the HPDI Foundational Supplements Program

Foundational Supplements Remain Fundamental

Vitamin C / Antioxidants

PRO-C and Ultimate Protector Comparison

Questions and Answers about Ultimate Protector

The Amazing Healing Potential of Natural Nrf2 Activators

Ultimate Protector™: First Impressions

Ultimate Protector™ Brunswick Labs ORAC5.0™ Test Results

Preventing Free-Radical Damage Using Ultimate Protector™

Description and Comparison of ORAC Tests for Well Known Plant Ingredients and Ultimate Protector™

Ultimate Protector and the Role of Foundational Supplements for Health

Natural Phytochemical Nrf2 Activators for Chemoprevention

New Directions for Preventing Free Radical Damage

Review of Scientific Research on Oligomeric Proanthocyanidins (OPC)” by Dr. Hank Liers

“Vitamin C – An Amazing Nutrient” by Dr. Hank Liers

Rejuvenate! Superfoods

Rejuvenate! Berries & Herbs: Ingredients for Optimal Nutrition

9 Things to Know About Rejuvenate!™ Superfoods

High-RNA Rejuvenate!™ Superfood

Get Results with Rejuvenate! Superfoods

Dietary RNA for Athletic Performance



Super-Tasty Morning Nutritional Drinks


The Science Behind Megahydrate

Hydrogen for Optimal Health

Wonders of Molecular Hydrogen

Gut Health

Gut Health – Effects of Glyphosate and Antibiotics

Gut Health – Intestinal Rejuvenation Formula


Vitamin formulas, including multivitamins

Mighty Multi-Vite!

Multi Two Caps

Rejuvenate!™ Berries & Herbs

Rejuvenate!™ PLUS

Rejuvenate!™ (Original)

Rejuvenate! Superfoods: Product Comparison

Ultimate Protector™ Nrf2 Activator (vitamin C/antioxidant)

PRO-C (Vitamin C/Antioxidant formula)

Intestinal Rejuvenation Formula (gut health)

Restore For Gut Health (lignite formula)

Active H2 (hydrogen)

Megahydrate (hydrogen)

Prescript-Assist™ (probiotic/prebiotic)




Fred Liers PhD foundational supplements remain fundamentalI spoke with an old friend recently. I will call him Joe.

Joe has digestive tract issues, including extreme diverticulosis. While I have provided him with suggestions for improved nutrition and supplement use in recent years, he hasn’t followed any of my recommendations seriously.

Instead Joe opted for a more conventional route. Now his situation has worsened dramatically, and he says he’s ready to start a program of improved nutrition and supplements. That’s good, even though it would be easier had he started sooner. Like I said, Joe is a good friend. I wish him health and happiness.

My initial advice to Joe remains the same as it would be for everyone. He should start with a dietary changes and a solid program of foundational supplements like those in the HPDI Foundational Supplements Program. He can later add enhancements and condition-specific formulas addressing his unique needs.


The HPDI Foundational Supplements program was developed by Hank Liers, PhD to provide optimal levels of basic nutrients important for good health. In our experience, the HPDI program works to support vibrant health. It also helps cover gaps left by poor diet, incomplete nutritional supplementation, and imbalances due to genetic factors. It helps to compensate for lower nutrients levels found in many modern foods both processed and/or produced by modern industrial agricultural methods (i.e., that deplete soils or block nutrient uptake).

Read more the HPDI Foundational Supplements Program.


HPDI’s foundational supplements program includes six categories of dietary supplements.


I don’t like to be overly prescriptive about food. But Joe is a “carb” lover and with a history of consuming processed, high-sugar foods, and junk foods. For example, processed breads, donuts, candy bars, and soda have been staples for years. It doesn’t help many of these foods either are GMO or high in glyphosate (the main ingredient in the herbicide RoundUp), which is known to produce adverse gastrointestinal (and other harmful) effects.

He has reduced his intake of high-carb, sugary foods in recent years. In fact, he has significantly cut back on simple sugars because he finds they drain his energy and don’t help his digestion.

I suggested he continue cutting back on simple carbs and sugars, and that he add more fresh vegetables and high-quality proteins to his diet. I recommend organically grown and non-GMO foods.

I can’t say what caused Joe’s diverticulosis. But I can say that changes in his diet are necessary to support optimal health, as well as healing of damage to his digestive tract.

It doesn’t help that Joe takes several drugs, including a long-term antibiotic for a stubborn urinary tract infection, and a laxative (containing polyethylene glycol) for his constipation and diverticulosis. These drugs may help in the short term, but they far from ideal for long-term use.

Joe himself isn’t pleased with his need for drugs. He intends ultimately to stop them when possible.

He has been having trouble sleeping in recent years. I suspect this may be related to his troubles with his intestinal tract, dysbiosis, and possibly issues with his microbiome.


Joe sent me his supplement schedule and results from a few health tests to review. He has “nutrition-oriented” doctors whose advice he follows quite rigorously.

I reviewed his supplement schedule and health test results. His results include some in-depth genetic tests, which provide insights into potential health concerns, and practical advice for nutritional supplementation.


I saw glaring gaps in Joe’s supplement schedule. There are major imbalances in his supplement program. For example, I see no multivitamins or vitamin C/antioxidant formula, which are basic to the HPDI foundational program.

Indeed, for all the good elements, his program unfortunately is hit-or-miss in terms of providing a complete spectrum of essential nutrients.

On the upside, he’s been taking a few specific-nutrient supplements daily:

5,000 mg of vitamin D (25-hydroxy).

3,000 mg of Omega-3 (EPA/DHA) and 1,000 mg of flax seed oil.

He gets some coenzyme B vitamins:

2,000 mcg of a methyl folate (MTHF)

1,000 mcg of B12 as methylcobalamin daily.

Taking these standalone coenzyme B vitamins is good because test results indicate he has the heterozygous genotype for the MTHFR C677T (C/T) and MTHFR A1298C (A/C). The presence of both polymorphisms can result in significantly reduced activity of MTHFR potentially leading to reduced production of the active form of folate (L-methylfolate).

As his test results stated: “Reduced levels of L-methylfolate lead to decreased production of neurotransmitters, reduced conversion of homocysteine to methionine, and reduced s-adenosylmethionie (SAMe) concentrations.”


I asked about his multivitamin and vitamin C intake. He said he takes them despite the fact they are absent from his supplement schedule. I supposed they were absent from his schedule because his doctors want to make sure he gets his vitamin D, folate, methylcobalamin, and essential fats, but aren’t too concerned about whether or not he takes a complete multivitamin, vitamin C/antioxidant formula, or complete B-complex vitamins.

Joe told me he takes a multivitamin, B-complex, and vitamin C supplement. But didn’t take all of them daily.  All three products came from a “big-box” store known for low prices.

Joe therefore consumed a few specific, advanced, medical-quality formulas at the direction of his doctors. Yet, he purchased low-end multivitamin, vitamin C, and B-complex products that can or should be the foundation of his supplement program.

His multivitamin was a low-potency formula providing only 3–500% of the daily value for most nutrients with many at exactly 100%. Not only is this multivitamin low-potency, but its forms are conventional (no coenzyme vitamins or advanced forms). Moreover, it is full of unnecessary additives and fillers like polyethylene glycol, polyvinylpyrrolidone, and sodium benzoate.

His vitamin C was 500 mg. He didn’t take it every day and when he did, he took only one or two.


Joe and I talked about his situation. He agreed to receive a package of supplements. Actually, I attempted several years ago to help him get onto a foundational supplements program. He took some supplements and he definitely noticed a difference in how he felt. Yet, he wasn’t ready to take a complete system of high-quality supplements. He finally agreed to try the program.

I sent him a package of HPDI supplements. It included two foundational supplements: Hank & Brian’s Mighty Multi-Vite! (multivitamin) and PRO-C (vitamin C/antioxidant formula). I did not include essential fats because he already takes them. I will send Rejuvenate! PLUS superfood and Intestinal Rejuvenation Formula in a separate shipment.

Joe now takes the Mighty Multi-Vite! and PRO-C, as well as Myo-Mag (magnesium) daily. He is already noticing he needs less of his laxative, and has scaled back his dosage. He can see the day is coming when he can wean himself entirely of it. He has updated his supplement schedule to include all of his supplements, so he can better track his supplement intake and ensure consistency.

I also sent him a Warrior Sleep for his sleeping troubles, and a bottle of Restore, which may help his intestinal tract and problems related to it.

PRO-C foundational supplements vitamin c

PRO-C is one of HPDI’s premier vitamin C / antioxidant formulas.

In forthcoming blog posts I plan to document the status of Joe’s health, including his energy levels and subjective feelings about his health. We will see how foundational supplements help him.

Not everyone is as fortunate as as Joe to have a friend who will send supplements and more importantly, talk to him in depth about nutrition and the need for foundational supplements.


It is my hope that Joe will follow the foundational supplements program, regain some health, and continue to improve by remaining on the program with HPDI supplements. He can take on his foundational supplements program as a mission for his own long-term health.

I also hope Joe’s experience with HPDI supplements will be an example to others who may be in similar situations. This includes individuals who don’t know where to begin, and those who take a variety of supplements yet aren’t receiving a full complement of essential nutrients.

Others who may be in similar situations to Joe’s include those who take supplements as directed by their doctor, but whose supplement schedule is “hit-or-miss,” which I suspect is a lot of people. Or those taking low-potency multivitamins or B-complex vitamins or just 500 mg of vitamin C daily. Also those taking basic supplements sporadically or whenever they “feel like it.”

Joe is far from being alone in having significant gaps in his foundation of essential nutrients that support good health. His doctors missed those gaps despite their best intentions to provide him with advanced nutrients based on genetic testing to assess potential deficiencies. “Losing sight of the forest for the trees” can happen to the best of us. In fact, the average person’s nutrient profile is not unlike Joe’s in many respects. And like Joe’s situation, foundational supplements can help close the gaps.


There are many reasons I feel confident that HPDI foundational supplements will continue helping Joe. Not only am I not surprised he is noticing results, but also I’ve seen health improve in many (perhaps hundreds of) individuals when they begin a complete foundational supplements program, and then especially when they maintain it.

Good results are not surprising when the levels of nutrients increase from just 100% of the daily value for most nutrients to much higher levels.

Results improve over time when the body continues receiving high levels of essential nutrients.

Dietary supplements are generally non-toxic so there is little risk of problems when the body receives more than adequate nutrients to meet its needs.

And why take just the minimum? Minimum amounts of nutrients tend to perpetuate deficiencies when you consider factors like poor diet, increased oxidative stress, toxic exposures (leading to greater nutrient needs to support detoxification), and genetic factors (e.g., enzyme deficiencies).

multivitamins HPDI foundational supplements

HPDI Multivitamins include Mighty Multi-Vite!, Multi Two (caps and tabs), Mini Multi, and Chewable Kids Mighty-Multi!


The HPDI Foundational Supplements Program until recently consisted of four types of supplement:

• High-Potency Multivitamin

• Vitamin C / Antioxidant Formulas

• Essential Fatty Acids

• High-RNA Superfoods (providing dietary nucleic acids)

Just last month, HPDI revised the Foundational Supplements Program to include two additional types of supplements:

• Gut Health formulas (such as Restore)

• Hydrogen products (such as Megahydrate and Active H2)

For more information on the revised system, see Amending the HPDI Foundational Supplements Program (blog post) by Hank Liers, PhD.

All six of these types of formulas comprise the HPDI Foundational Supplements Program. It is our belief that these six types of formulas are foundational to health regardless of whether you use HPDI’s supplements or those of another company (as long as they are high-quality, high-potency, provide the proper forms, and do not contain unnecessary excipients or toxic ingredients).

The HPDI foundational supplement program is the result of many years of product formulation, evaluating scientific research, following the experience of end-users, feedback from doctors and other clients, and staying on the cutting-edge of nutritional science. HPDI is known for updating its formulas as new information becomes available regarding better forms of nutrients, or means form improving nutrient uptake or utilization.


HPDI formulates four of the six types of formulas in the Foundational Supplements Program.

HPDI Multivitamins include: Hank & Brian’s Mighty Multi-Vite!, Multi Two (caps or tabs), Mini Multi (for the chemically sensitive), and the Kid’s Mighty Multi!

HPDI Vitamin C / Antioxidant formulas include: PRO-C, Ultimate Protector Nrf2 formula, Buffered C (tabs), and Buffered C (powder)

HPDI Essential Fatty Acids: Essential Fats Plus E

HPDI’s Rejuvenate! Superfoods include: Rejuvenate! Original (densely green), Rejuvenate! PLUS (lightly green), and Rejuvenate! Berries & Herbs (no greens). See the Rejuvenate! side-by-side comparison.

HPDI foundational supplements are formulated by Dr. Hank Liers, PhD. Hank is known for formulas that utilize only the highest-purity and highest-quality ingredients, and for his emphasis on natural forms (e.g., coenzyme forms) best recognized and utilized by the body.


Foundational supplements are the foundation for good health. That is why we call them foundational. This is also why we believe so strongly in providing a strong foundation of nutrients before recommending what we call enhancement formulas, specific-condition formulas, or other add-ons (such as a soil-based probiotic formula).

That is to say, a given individual will possibly have many requirements for nutrients specific to their needs. Such formulas may include magnesium, iodine, certain B vitamins like coenzyme folate (5-MTHF). An individual may also require formulas specific to certain issues, concerns, or organ systems, such as formulas targeting joint health, bone health, allergies, blood sugar, liver health, and others. In fact, HPDI formulates formulas specific to these needs.

Yet, before specific needs are addressed, or at least concurrently, HPDI believes that foundational nutrients must provide the base or foundation upon which all other nutrients, condition-specific formulas, or enhancement formulas rest.

One danger, as we saw with Joe’s supplement schedule before he started taking HPDI foundational supplements, was putting the cart before the horse. That is, finding a person in a situation where there are several or numerous advanced nutrients being taken. Yet, where the “base” is relatively weak due to low-potency supplements and/or lack of basic nutrients. In this type of situation, it is less likely that the addition of several advanced nutrients can make as much of a difference for health because key nutrients are missing.

Missing key nutrients prevents certain advanced nutrients or even higher levels of specific nutrients from doing their job because major imbalances can render those nutrients useless, less bioavailable, or unable to contribute what they could were there a sufficiency of the basic nutrients required to support all biochemical processes in the body. We have written much on this topic—please see the resources section (below) for more information.

The point is that without a plentiful supply of basic nutrients in ideal forms, which is exactly what is provided by foundational supplements (and almost never by diet alone), a person will remain vulnerable to many nutrient deficiencies. Nutrient deficiencies (especially when they are prolonged over time) can result in less than optimal health.

By simply providing optimal levels of all basic nutrients, foundational supplements support the body by covering its nutritional needs, not unlike insurance. Moreover, they are generally inexpensive (relative to conventional health care costs) even for the highest-quality supplements, such as HPDI formulas.


Foundational supplements remain fundamental for health. Nothing can replace them. Before starting single nutrients or condition-specific formulas, it is important to obtain a full complement of basic nutrients that support bodily function.

After basic nutrition is attained through foundational supplements, diet, and appropriate lifestyle changes, then other types of nutritional supplements (such as enhancement formulas and specific-condition formulas) may be added to form a complete nutritional supplement system.

Key Takeaways:

• More people are getting advanced forms of specific vitamins and minerals in supplement form, usually at the direction of their doctor or nutritionist

• Few people obtain a complete, high-potency multivitamin

• Fewer still consume high-quality forms of all basic nutrients (provided by good diet and foundational supplements)

• Adding a complete set of high-potency, foundational supplements (multivitamin, Vitamin C / antioxidant formula, essential fats, high-RNA superfoods), hydrogen, and gut health formulas) supports basic good health

• Poor dietary choices increase the need for nutritional supplements that can provide high levels of a wide range of essential nutrients

• Taking foundational supplements sporadically is not a good way to ensure you obtain adequate levels of the important nutrients you require daily


Foundational Supplements Program

The Need for Foundational Supplements (.pdf)


Amending the HPDI Foundational Supplements Program

Vitamin C / Antioxidants

PRO-C and Ultimate Protector – Comparison of Antioxidant Formulas

Questions and Answers about Ultimate Protector

The Amazing Healing Potential of Natural Nrf2 Activators

Ultimate Protector™: First Impressions

Ultimate Protector™ Brunswick Labs ORAC5.0™ Test Results

Preventing Free-Radical Damage Using Ultimate Protector™

Description and Comparison of ORAC Tests for Well Known Plant Ingredients and Ultimate Protector™

Ultimate Protector and the Role of Foundational Supplements for Health

Natural Phytochemical Nrf2 Activators for Chemoprevention

New Directions for Preventing Free Radical Damage

Ultimate Protector flyer (.pdf)

Review of Scientific Research on Oligomeric  Proanthocyanidins (OPC) by Dr. Hank Liers

Vitamin C – An Amazing Nutrient by Dr. Hank Liers

High-RNA Superfoods

Rejuvenate! Berries & Herbs: Ingredients for Optimal Nutrition

9 Things to Know About Rejuvenate!™ Superfoods

High-RNA Rejuvenate!™ Superfood

Rejuvenate! – The Original, High-RNA Superfood

Natural Phytochemical NRF2 Activators for Chemoprevention



Super-Tasty Morning Nutritional Drinks


Hank & Brian’s Mighty Multi-Vite!

Multi Two (caps and tabs)

PRO-C (vitamin C / antioxidant formula)

Ultimate Protector™ Nrf2 Activator

Essential Fats Plus E

Rejuvenate!™ PLUS

Rejuvenate!™ (Original)

Rejuvenate!™ Berries & Herbs

Rejuvenate! Superfoods: Product Comparison

Hydrogen products



Vitamin D3 PLUS

MYO-MAG (magnesium)

Warrior Sleep & Warrior products

Intestinal Rejuvenation Formula

Prescript-Assist probiotic (soil-based organisms)


You can reach HPDI by calling 1-800-228-4265, email Support(at)IntegratedHealth.com, or visit the retail website: IntegratedHealth.com

Health care professionals and resellers can apply for wholesale account, which includes access to the HPDI reseller website: HealthProductsDistributors.com. Email: Support(at)HealthProductsDistributors.com.



Dr. Hank Liers, PhD antioxidant formulasI have written extensively regarding the benefits HPDI’s PRO-C™ and Ultimate Protector™ antioxidant formulas. Based upon my experience with these formulas they are among the most effective antioxidant formulas available.

Both antioxidant formulas are included in HPDI’s system of foundational supplements and work most effectively when used with multivitamins, essential fats, and superfoods.

Yet, both formulas also are excellent standalone products that can rapidly provide the body with extremely high protection against free radicals.
Ultimate Protector antioxidant formulas

We are often asked “which of these two antioxidant formulas should I take?” My answer usually is to take both formulas. I personally take both of them on a daily basis.

Below I will briefly show the reason my answer is to take both formulas. I include information showing the relationship, in terms of ingredients of the two formulas (per serving of three (3) capsules daily of PRO-C and six (6) capsules daily of Ultimate Protector).

Ultimate Protector


PRO-C™ (per serving of three “00” veggie caps)

• Buffered non-GMO Vitamin C (1,500 mg)  buffered with Ca/Mg/Zn
• Grape Extract (seed, skin, and pulp) (90 mg)
• Green Tea Extract 95% polyphenols 40% min. EGCG (90 mg)
• Glutathione – reduced (60 mg)
• N-Acetyl-l-Cysteine (NAC) (45 mg)
• R-Lipoic Acid (15 mg)
• Coenzyme B2/R5P (3 mg)
• Coenzyme B6/P5P (3 mg)
• Selenium from l-selenomethionine (30 mcg)
• Calcium (70 mg)
• Magnesium (70 mg)
• Zinc (6 mg)

ULTIMATE PROTECTOR™ (per serving of six “0” veggie caps)

• Vitamin C as non-GMO Ascorbic acid (1500 mg)
• Anthocomplete™ (135 mg)  Wild Blueberry, Wild Bilberry, Acai, Black Currant Extract, Sweet Cherry, Raspberry, Elderberry, Blackberry, Aronia, Black Soybean Hull Extract, and Blue Corn
• CoffeeBerry®Forte (135 mg)
• Vitaberry® Plus (90 mg) freeze-dried Grape Seed, Wild Blueberry, Wild Bilberry, Cranberry, Tart Cherry, Prune, Raspberry Seed, Strawberry, Trans-Resveratrol, and Quercetin
• VitaVeggie® (90 mg)  Broccoli, Broccoli Sprouts, Tomato, Kale, Carrot, Brussels Sprouts, Onion, and Spinach
• Curcumin 95%  (90 mg)
• Trans-Resveratrol 98% (90 mg)
• Malic Acid (500 mg)
• Calcium (60 mg)
• Magnesium (60 mg)
• BioPerine® (7.5 mg)

The products together contain nine (9) unique PRO-C™ ingredients, eight (8) unique Ultimate Protector™ ingredients, and three (3) overlapping ingredients.



When PRO-C™ was first released in 1997 there were few publications available regarding Nrf2 ingredients and their benefits. The product design was based on the work of Dr. Lester Packer and his work done on the “Antioxidant Network” showing how nutrients such as Vitamin E, Vitamin C, Glutathione, and Lipoic acid work in a redox network to regenerate key nutrients in the body (see Figure 1. below)

doctor lester packer antioxidant formulas

                                                Figure 1. – Dr. Packer’s Antioxidant Network

At that time the powerful antioxidant formulas of Grape Seed Extract and Green Tea Extract were well known, but their powerful Nrf2 effects were not discovered until later. These ingredients are able to trap free radicals and conserve the body’s store of network antioxidants.

Also, the Nrf2 effects of NAC and Lipoic acid were not known at the time, but their powerful effects on the body were known to support the production of glutathione. Additionally, the super powerful glutathione (reduced) was included with supporting coenzymes B2 (from riboflavin 5′-phosphate) and B6 (from pyridoxal 5′-phosphate) that allow the enzymes glutathione reductase and transferase to function at a higher level.


From the beginning of the design process, Ultimate Protector™ (UP) was focused on creating a highly effective Nrf2 activator formula with outstanding antioxidant effects. Our understanding was that a very broad spectrum of plant polyphenols including flavonoids, anthocyandins, oligoproanthocyanidins (OPCs), etc. would deliver the best results.

We selected Futureceuticals Anthocomplete™, CoffeeBerry® Forte, Vitaberry® Plus, and VitaVeggie® in order to accomplish this and added Curcumin 95%, and Trans-Resveratrol 98% because of the powerful scientific findings regarding Nrf2 activation for these two ingredients. We found out later in testing that this combination of ingredients produces very high ORAC5.0 values (486,000 units/serving of six capsules) and works effectively against all of the primary types of free radicals in the body.


Ultimate Protector versus PRO-C antioxidant formulas

Venn diagram showing unique and overlapping ingredients in PRO-C and Ultimate Protector.

There are 29 unique Nrf2 activator ingredients in Ultimate Protector (UP) and four (4) non-overlapping Nrf2 activator ingredients in PRO-C. Thus by taking both formulas you are able to receive 33 identifiable Nrf2 activator ingredients (870 mg). The amount of unique Nrf2 ingredients is probably significantly more than this because most of the identifiable ingredients contain a range of plant polyphenols.

Other unique ingredients of each formula include glutathione – reduced (60 mg), malic acid (500 mcg), zinc (6 mg), selenium (30 mcg), B2 (3 mg) and B6 (3 mg) from coenzyme forms, and Bioperine (7.5 mg) (for enhanced absorption of nutrients). These are important ingredients to have the formulas work more effectively together.

The overlapping ingredients in the formula include Vitamin C (3 gm – 1.5 gm from each formula), calcium (130 mg – 70 mg from PRO-C & 60 mg from UP), magnesium (130 mg – 70 mg from PRO-C & 60 mg from UP), and a little grape seed extract (~10 mg). We view this to be very positive especially because we believe that most people should take in at least 3 grams daily of Vitamin C. Equal amounts of calcium and magnesium balance each other in the body and have many important functions such as being part of critical enzymes.


The Antioxidant Miracle. Lester Packer, PhD, and Carol Coleman. New York: John Wiley and Sons, 1999.

“Antioxidant Cocktail Update: Part 1: The Take Home Message is to Use Antioxidant Supplements”
(Interview of Dr. Lester Packer by Richard A. Passwater, PhD, Whole Foods Magazine, 1999)



You can reach HPDI by calling 1-800-228-4265, email support(at)IntegratedHealth.com, or visit the retail website: IntegratedHealth.com

Health care professionals and resellers can apply for wholesale account, which includes access to the HPDI reseller website: HealthProductsDistributors.com. Email: Support(at)HealthProductsDistributors.com.