Vitamin C w/Bioflavonoids 500 mg by Vital Nutrients is a high potency health supplement which is able to combine together 2 of the most powerful synergistic nutrients which can help with antioxidant activity and immune function. This health supplement is suitable for immune support, vein health support, capillary support, and circulation support, This supplement features a 60% citrus bioflavonoid complex and is suitable for sensitive stomach.