Vitamin C
L-Ascorbic Acid
Essential antioxidant and cofactor for collagen synthesis, immune function, and iron absorption. Supports glutathione recycling and may help maintain telomere length.
Typical longevity dose: 500-2000 mg/day
Price Comparison
| Product | Vendor | Price | Per Serving | Trust | |
|---|---|---|---|---|---|
NOW Vitamin C-1000 1000mg · tablet · 250 servings | iHerb | $14.99 | $0.06 | 8 | Buy |
NOW Vitamin C-1000 1000mg · tablet · 250 servings | NOW Foods | $15.99 | $0.06 | 7 | Buy |
Life Extension Vitamin C 1000mg 1000mg · tablet · 60 servings | Life Extension | $9.00 | $0.15 | 9 | Buy |
Thorne Vitamin C with Flavonoids 500mg · capsule · 90 servings | Thorne | $15.00 | $0.17 | 9 | Buy |
Garden of Life Vitamin Code Raw C 500mg · capsule · 120 servings | Garden of Life | $24.99 | $0.21 | 7 | Buy |
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Key Research
Vitamin C supports immune defense by supporting cellular functions of both innate and adaptive immunity.
Carr AC, Maggini S (2017). Nutrients
Interaction Warnings
Iron supplements
Enhances iron absorption — beneficial for deficiency, caution in iron overload
Synergies
Collagen
Essential cofactor for collagen synthesis
Quercetin
Regenerates quercetin and enhances bioavailability
Disclaimer: This information is for educational purposes only and is not medical advice. Research citations are provided for reference — consult your healthcare provider before starting any supplement regimen. Prices are estimates and may not reflect current retail pricing.