* Vitamin C Supplement * Buffered Vitamin C A timed-release, buffered vitamin C supplement providing sustained absorption of vitamin C and calcium over a period of 5 to 7 hours. 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. Acidic Vitamin C can irritate sensitive stomachs. Carlson MILD·C contains a non-acidic form of Vitamin C that is mild in the stomach.