Welcome to HPDI!

Vitamin C Products

HPDI offers 7 types of Vitamin C & Antioxidant formulas, including PRO-C™, Ultimate Protector™, OPC-CBuffered C (powder and tablets), Ascorbic Acid, and Liposomal Vitamin C.

HPDI Vitamin C / Antioxidant formulas offer:

  • Therapeutic levels of Vitamin C, typically 500–1600 mg per dose
  • Buffered or non-buffered forms
  • Capsules, tablets, powder, and liposomal sprays
  • Antioxidant formulas providing vitamin C plus free-radical protection using ingredients like grape extract, green tea extract, glutathione, and NAC
  • Nrf2 activator formulas with multiple, high-ORAC, plant-based ingredients for ultra-effective, free-radical quenching capacity
  • High-purity with minimal excipients, and avoidance of harmful excipients
  • Liposomal vitamin C utilizing the latest nanoliposomal delivery technology
  • Non-GMO
  • Non-corn antigen sources
  • Vegetarian capsules (for most encapsulated formulas)

All Vitamin C / Antioxidant products provide unique benefits:

    • PRO-C™ (90 &180 veggie caps) is a flagship vitamin C and antioxidant/Nrf2 activator formula providing 500 mg buffered vitamin C, grape extract, green tea extract, reduced glutathione, NAC, R-lipoic acid, coenzyme vitamins B2 and B6, and selenium
    • Ultimate Protector™ (180 veggie caps) is a high-potency Nrf2 activator supplement. Six small capsules provide 1500 mg vitamin C and 29 plant-based Nrf2 activators for a total ORAC5.0 value of 486,000 units.
    • OPC-C™ (120 caps) provides 500 mg buffered vitamin C plus BioVin grape extract
    • Liposomal Vitamin C with R-Lipoic Acid - 125 mg/ml (2 pumps) plus 25 mg sodium R-Lipoate
    • Liposomal Glutathione - 100 mg/ml (2 pumps) plus 120 mg essential phospholipids from purified sunflower lecithin
    • Buffered Vitamin C powder (8 & 16 oz) - USP grade ascorbic acid powder plus mineral buffering compounds of potassium bicarbonate, calcium carbonate, magnesium oxide, and zinc carbonate.
    • Buffered C 1,000 (250 tabs) - calcium and magnesium ascorbates in a convenient, cost-effective tablet
    • Vitamin C 1,000 (250 vegetarian capsules) provide 1,000 mg of the highest-purity ascorbic acid

    More information about Vitamin C formulas and other Foundational Supplements can be found on this website, and our blog (integratedhealthblog.com).

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    • Buffered C Powder (1 lb)(454 gm)

      Buffered C Powder (1 lb) (454 gm)

    • Buffered C Powder (8 oz)(227 gm)

      Buffered C Powder (8 oz) (227 gm)

    • Buffered Vitamin C 1,000 (250 tabs)

      Buffered Vitamin C 1,000 (250 tabs)

    • OPC-C (120 caps)

      OPC-C (120 caps)

      Regular Price: $17.95

      Special Price $8.98

      As low as: $7.18

      Out of stock

    • PRO-C (180 caps)

      PRO-C (180 caps)

    • PRO-C (90 caps)

      PRO-C (90 caps)

    • Quicksilver Liposomal Vitamin C with R-Lipoic Acid

      Quicksilver Liposomal Vitamin C with R-Lipoic Acid

    • Ultimate Protector™ (180 vcaps)

      Ultimate Protector™ (180 vcaps)

    • Vitamin C 1,000 (250 vcaps)

      Vitamin C 1,000 (250 vcaps)

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