Supplements
Life Extension Buffered Vitamin C Powder
Life Extension
Powder with 4,000 mg Vitamin C (as ascorbic acid), 55 mg Magnesium (as magnesium carbonate), 2 mg Zinc (as zinc gluconate) and 365 mg Potassium (as potassium carbonate) per serving (1 rounded teaspoon, approximately 5.4 g); 454 grams. Price: $21.00 for 454 grams ($19.00 with AutoShip), checked Oct 4, 2026; no third-party certification is stated. Dietary supplements are not FDA-approved: FDA does not approve dietary supplements or their labeling before sale.
Listed for: US
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Trust notes
- Proprietary blend: No proprietary blend is flagged on this listing.