Bio-C is a palatable, easy-to-administer powdered source of supplemental vitamin C combined with bioflavonoids. Sodium ascorbate has a saltier, less sour taste than ascorbic acid and is a potent, water-soluble antioxidant. This form of vitamin C is naturally buffered and thus reduces gastric distress commonly associated with high doses of straight ascorbic acid.  Bioflavonoids help maintain capillary integrity and act as antioxidants.