Sundown Naturals Vitamin C Vitamin Supplement Tablets, 500mg, 100 count : MANUFACTURER: SUNDOWN VITAMINS. Sundown Vitamin C 500 Mg Ascorbic Acid Vitamin Supplement Tablets helps promote healthy immune function and general well-being. It acts as an antioxidant to help provide support for healthy cells and body systems. INGREDIENTS: Active Ingredients: Vitamin C 500 mg (as ascorbic Acid) 833%. Inactive Ingredients: Cornstarch, crospovidone, magnesium stearate. DIRECTIONS: 1 Tablets up to 3 times per day. WARNINGS: Keep out of reach of children. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.