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Life Extension

Vitamin C 1000 mg with Dihydroquercetin

Gluten Free

Item: LE109

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Swanson $19.13
Retail $25.50
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1,000 mg 250 Tabs

  • Vitamin C with Dihydroquercetin (DHQ) from Life Extension



  • Immune support with synergistic antioxidants



  • Contains no gluten, milk, egg, fish, peanuts, soybeans, wheat, yeast, corn, rice or tree nuts


Vitamin C with Dihydroquercetin (DHQ) from Life Extension provides natural immune health support and synergistic antioxidants. Vitamin C, as ascorbic acid, is a water-soluble substance found in citrus fruits and green vegetables. Because humans do not manufacture vitamin C internally, it must be obtained through dietary sources or supplements. Few people realize, however, that vitamin C is a water-soluble nutrient that is quickly oxidized and excreted by the body, which limits its efficacy. Fortunately, a flavonoid antioxidant known as dihydroquercetin functions as a vitamin C "supercharger." Studies demonstrate that dihydroquercetin acts to inhibit the oxidation of vitamin C, thereby helping maintain its concentration and recycle vitamin C throughout the body.

Lee Swanson, President

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Product Description:

Vitamin C 1000 mg with Dihydroquercetin

  • Vitamin C with Dihydroquercetin (DHQ) from Life Extension



  • Immune support with synergistic antioxidants



  • Contains no gluten, milk, egg, fish, peanuts, soybeans, wheat, yeast, corn, rice or tree nuts


Vitamin C with Dihydroquercetin (DHQ) from Life Extension provides natural immune health support and synergistic antioxidants. Vitamin C, as ascorbic acid, is a water-soluble substance found in citrus fruits and green vegetables. Because humans do not manufacture vitamin C internally, it must be obtained through dietary sources or supplements. Few people realize, however, that vitamin C is a water-soluble nutrient that is quickly oxidized and excreted by the body, which limits its efficacy. Fortunately, a flavonoid antioxidant known as dihydroquercetin functions as a vitamin C "supercharger." Studies demonstrate that dihydroquercetin acts to inhibit the oxidation of vitamin C, thereby helping maintain its concentration and recycle vitamin C throughout the body.

Product Label:

Vitamin C 1000 mg with Dihydroquercetin

Supplement Facts

Serving Size 1 Tablet

  Amount Per Serving % Daily Value
Vitamin C (as ascorbic acid) 1000 mg 1667%
Dihydroquercetin-3-rhamnoside [from Grape (Vitis vinifera) Extract (leaf)] 10 mg *

*Daily Value not established.

Other Ingredients: Microcrystalline cellulose, stearic acid, croscarmellose sodium, vegetable stearate, silica, hydroxypropyl methylcellulose, glycerin.

Directions: Take one (1) tablet daily with food, or as recommended by a healthcare practitioner.

WARNING: Keep out of reach of children. Do not exceed recommended dose. When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

This product contains no milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, corn, or rice. Contains no sugar, and no artificial sweeteners, flavors, colors, or preservatives.

Terms and Ingredient Definitions

Vitamin C 1000 mg with Dihydroquercetin

Swanson $19.13
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Life Extension Vitamin C 1000 mg with Dihydroquercetin Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Vitamin C 1000 mg with Dihydroquercetin 5 5 3 4
Excellent product at a good price... I buy a lot of vitamin c as I take several grams per day. This product is excellent and at a fair price. No complaints! February 13, 2014
No GMO corn, No GMO soy I just became aware of the fact that nearly ALL vitamin C in supplements is made from CORN! That means GMO corn. This is the only vitamin C supplement I have found that is not made from corn. Nor does it contain soy, which is equally as bad as corn. Glad I found this! June 27, 2013
No GMO Corn The only 1000mg vitamin C I could find that doesn't contain Corn made for Genetically Modified Organisms, GMOs. April 19, 2013
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