BIO-C PLUS 1000Bio C Plus 1000 is Vitamin C as mixed mineral ascorbates combined with bioflavonoids, SOD and catalase. Mixed ascorbates are less likely to cause digestive distress than regular ascorbic acid at this level. Use wherever the need for vitamin C is determined. Bio C Plus 1000 helps with: Antioxidant support Healthy Connective Tissue and Blood Vessel Synthesis Support of Normal Immune System Function Synthesis of Carnitine, Neurotransmitters, and Collagen