Source Naturals Ultimate Ascorbate C, Supports Immune System, 100 Tablets Dietary supplement. Supports immune system. Each tablet contains 1,000 mg of Vitamin C, completely derived from five fully-reacted mineral ascorbates, ascorbate C is a natural and better form of Vitamin C than ascorbic acid because it is pH neutral. Features: Vitamin C plays a major role in the formation of collagen, a component of connective tissue that provides structure for skin, cartilage, tendons and ligaments Also participates in amino acid metabolism and hormone synthesis, and in the utilization of other nutrients such as iron A key factor in the body's immune system Vitamin C is unusual in that it is synthesized by most mammals, but not by humans and other primates, making supplementation desirable A potent reducing agent and antioxidant and may help regenerate oxidized vitamin E Product Details: Product Dimensions: 2.3 x 2.3 x 4.3 inches ; 7.5 ounces Shipping Weight: 8 ounces Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues. International Shipping: This item is not eligible for international shipping. Learn More UPC: 021078008323 Item model number: SN0832