Buffered Vitamin C. Chewable buffered Vitamin C with the fresh taste of tangerines. Vitamin C is an essential antioxidant nutrient. It is necessary for the building of collagen maintaining teeth and gum tissue health and normal functioning of the body's natural defenses.*. Carlson Mild-C contains Calcium Ascorbate a buffered form of Vitamin C that dentists prefer in chewable Vitamin C supplements. There is evidence that teeth may be harmed by chewing Vitamin C tablets containing ascorbic acid. The acidity of ascorbic acid can leach Calcium from teeth causing gradual dental erosion. Ascorbic acid may also be difficult for a sensitive stomach to digest. Calcium Ascorbate is a non-acidic form of Vitamin C that is gentle to the teeth and mild in the stomach. . Completely free of sucrose and sucrose-containing sweeteners such as honey molasses and maple syrup. No color or preservatives added.