Featuring Vitamin C & Bioflavonoids Bio C 1:1™ combines high-potency vitamin C with a standardized, full-spectrum, citrus bioflavonoid complex. Both vitamin C and bioflavonoids have been extensively researched for their roles in supporting antioxidant and immune function. In addition, research indicates that vitamin C is required for the synthesis of collagen, neurotransmitters, and carnitine. Bioflavonoids appear to support healthy metabolism and cognition by functioning as cell-signaling agents.* Features Cell-Life Regulation, Cardiovascular Support, Antioxidant Activity, Immune System Support, Adrenal Support Antioxidant support* Healthy Connective Tissue and Blood Vessel Synthesis* Support of Normal Immune System Function* Synthesis of Carnitine, Neurotransmitters, and Collagen* NPN 80069767 Supplement Facts Serving Size: 1 CapsuleServings Per Container: Amount Per Serving % Daily Value Vitamin C (ascorbic acid) 500 mg 556% Citrus Bioflavonoid Complex(Citrus aurantium)(skin)(50% citrus bioflavonoids) 500 mg ** ** Daily Value not established. All Formulas Meet or Exceed cGMP Quality Standards. Recommended Dose Adults: Take one capsule daily or as directed by your healthcare practitioner. If you are taking prescription medication, consult a healthcare practitioner prior to use as citrus bioflavonoids may alter the effectiveness of these medications.