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Vitamin C.

26 product profiles across 16 brands. Compare the selected format, ingredients and evidence before choosing.

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An essential nutrient, with a clear ceiling

Vitamin C supports normal collagen formation and helps the body absorb iron from plant foods. It also participates in antioxidant defences. A supplement can supply vitamin C when intake is inadequate, but a stronger tablet does not automatically provide better health than meeting the requirement through a varied diet.

Read the evidence limits and sources

These are established nutrient roles, not evidence that this exact bottle prevents illness. Routine vitamin C does not prevent colds in most people; any reduction in their duration is modest. NIH has not established one supplemental form as better than all others.

NIH Office of Dietary Supplements · Vitamin C ↗

Ingredient context reviewed 2026-10-26. General ingredient evidence does not verify the exact branded products below.

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Life Extension Vitamin C and Bio-Quercetin packaging
Life Extension

Vitamin C and Bio-Quercetin

60 vegetarian tablets; one-tablet serving

One tablet lists 1,000 mg vitamin C as ascorbic acid and a 15 mg Bio-Quercetin proprietary blend providing 5 mg quercetin and 4 mg galactomannans. The pictured pack contains 60 tablets.

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Products are arranged alphabetically by brand. Inclusion and ordering do not depend on an affiliate partnership. Check exact pack, seller and Indian delivery separately.

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