Advasorb® Vitamin C

Get more from your Vitamin C with Advasorb® - offering faster absorption, longer retention in the body, and higher bioavailability without stomach upset or heartburn!   

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Whether you are taking vitamin C for antioxidant protection, detoxification, or immune support, amplify its effects with Advasorb® Vitamin C. Combining PureWay-C®, a unique, rapidly absorbed, and better retained form of vitamin C with N-acetyl cysteine (NAC), this potent formula delivers:

  • Antioxidant Protection — Vitamin C and NAC are both antioxidants that neutralize harmful free radicals.*
  • Detoxification Support —  Animal and human studies have demonstrated that both vitamin C and NAC help the body detoxify a range of pollutants, including heavy metals, automobile exhaust, tobacco smoke, industrial chemicals, and pesticides.*
  • Immune Support —  Human clinical trials have shown that daily intake of vitamin C during the cold-weather season can promote immune response.* A placebo-controlled study also found that people who took NAC in the winter maintained their well-being.*

Why PureWay-C®? Research conducted at the University of Miami School of Medicine found that a single oral dose of PureWay-C® raised blood levels of vitamin C higher for a full 24 hours compared to other forms of vitamins.

100% of our Ingredients are Backed by Human Clinical Studies. Click on any ingredient below to view the research abstracts.

Suggested Use: 2 vegicaps with a meal for antioxidant support.* Take twice a day for detox and immune support.*

Supplements Facts

Serving Size: 2 vegicaps

Servings Per Container: 30

Amount Per Serving

% Daily Value

Vitamin C USP

500 mg 833%

(asPureWay-C® ascorbic acid)

Bioflavonoids (from citrus)

55 mg †

citrus bioflavonoid complex)

Black pepper extract (as BioPerine®)

1.5 mg †

† Daily value not established.

Other ingredients: vegetable cellulose, I-leucine, peppermint oil.

PureWay-C® is a registered trademark of Innovation Laboratories, Inc.

BioPerine® is a registered trademark and patented product of Sabinsa Corporation




Vitamin C (PureWay-C®)

Vitamin C, also known as ascorbic acid, is a water-soluble vitamin, meaning it dissolves in water rather than fat. Because water-soluble vitamins are not stored in the body, they need to be replaced daily. Vitamin C contributes to the health of the body by increasing its antioxidant, immune-stimulating, and detoxification powers.* PureWay-C® is a buffered, rapidly absorbed, better-retained form of vitamin C than regular ascorbic acid.


Calcium Carbonate (Alkemy) is widely used medicinally as an inexpensive dietary calcium supplement used when the amount of calcium taken in the diet is not enough. Calcium is needed by the body for healthy bones, muscles, nervous system, and heart. Calcium carbonate also is used as an antacid to relieve heartburn, acid indigestion, and upset stomach.


Magnesium (Alkemy®) a blend of alkalizing minerals Magnesium is an essential macro-nutrient that plays a role in over 300 enzyme systems. It is necessary for muscular relaxation and energy production, but is most well-known for its role in promoting healthy bones by helping the body absorb and use calcium.* Insufficient magnesium disrupts the balance of bone formation and bone breakdown as bone remodels itself.* Magnesium deficiency can also result in unhealthy calcium deposits in soft tissues.*

Black Pepper extract

Black Pepper extract (BioPerine®) is a patented black pepper extract-based product containing an ability to increase the bioavailability of nutritional compounds. To help amplify positive effects on your health, you need to take this supplement in conjunction with other health supplements.


 N-acetyl-L-Cysteine (NAC) is a combination of the amino acid L-cysteine plus an acetyl group, which speeds absorption and increases bioavailability compared to regular cysteine. Best-known for its detoxifying capacity, NAC can bind with various toxins, such as mercury and lead, helping remove them from the body.* NAC additionally has been shown to increase the antioxidant capacity of the blood in humans and help maintain a robust immune system during the winter months.*

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Q: How does Advasorb™ Vitamin C compare with regular vitamin C (ascorbic acid)?

A: Most vitamin C products on the market are formulated with ascorbic acid. As the name implies, ascorbic acid is acidic – which means it can cause an upset stomach and heartburn in some individuals. , featured in Advasord™C, is buffered with a blend of alkalizing minerals, so it does not cause gastrointestinal distress. You can even take it on an empty stomach!

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Ellen T.
United States United States


I run the gamit on vitamins, I dislike cheap vitamins full of fillers. Quality of Life, are quality vitamins, no nasty fillers. You get what you pay for and they work!

Kathryn C.
United States

Advasorb Vitamin C

Oh gosh, I was crazy when this went out of stock! Thank you for bringing it back. I told my Chiropractor, Barry Sunshine, just last week, that I feel a definite different in taking this Vitamin C over other brands. I love all of the products I receive from Quality of Life and I find them to be reasonably priced as well. Thank you for doing such a great job in a huge market!

Benjamin D.
United States

Feeling good

I’ve been taking this vitamin c as a preventative measure agains colds and the flue. I work in a preschool and have not gotten sick yet this year.

Kash Goyal

Five Stars

Great product!

Shirley S.

Five Stars

Wonderful product. I have used it for years

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