NOW Foods C1000 Buffered C Sustained Release, 180 Tablets Features : Now Foods C-1000 Buffered C containsCalcium Ascorbate. The Calcium Ascorbate in Now Foods C-1000 is not acidic and will not contribute to excess stomach acidity or irritation in sensitive persons. Now Foods Calcium Ascorbate is synthesized from a combination of Ascorbic Acid and Calcium Carbonate to form Calcium Ascorbate. From the FDA's website: "Some scientific evidence suggests that consumption of antioxidant vitamins may reduce the risk of certain forms of cancer. However, the FDA has determined that this evidence is limited and not conclusive." It's designed to quickly and efficiently replenish the vital electrolytes needed to keep you running strong all day long. Now Foods C-1000 Buffered C containsCalcium Ascorbate.The Calcium Ascorbate in Now Foods C-1000 is not acidic and will not contribute to excess stomach acidity or irritation in sensitive persons. Now Foods Calcium Ascorbate is synthesized from a combination of Ascorbic Acid and Calcium Carbonate to form Calcium Ascorbate. Ingredients: Vitamin C (from Calcium Ascorbate), Calcium (from Calcium Ascorbate), Citrus Bioflavonoids, Acerola, Rutin. Other Ingredients:Calcium Phosphate, Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Magnesium Stearate (vegetable source), Silica and Vegetarian Coating. Direction: As a dietary supplement, take one tablet daily, preferably with meals. Safety Warning: Please discard the inedible freshness packet enclosed. Supplement Facts: NOW Foods - C-1000 Buffered C Sustained Release - 180 Tablets Supplement Facts Serving Size: 1 Tablet Servings Per Container: 180 Amount Per Serving %DV Vitamin C (from Calcium Ascorbate) 1000 mg 1667 % Calcium (from Calcium Ascorbate) 110 mg 11 % Citrus Bioflavonoids 250 mg * Acerola 50 mg * Rutin 50 mg * *Daily Value Not Established Other Ingredients:Calcium Phosphate, Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Magnesium Stearate (vegetable source), Silica and Vegetarian Coating. Legal Statement: *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Our shipping: Most orders paid by 11 am (EST) ship the same day. Holidays add one day.