Bioflavonids are not true vitamins in the strictest sense, they are sometimes referred to as vitamin P.
Bioflavnoids enhance absorption of Vitamin C, and they should be taken together. Bioflavnoids act synergistically with vitamin C to protect and preserve the structure of capillary blood vessels.
Additionally, Bioflavnoids have an antibacterial effect and promote circulation, stimulate bile production, lower cholesterol levels and treat and prevent cataracts. The source of Bioflavnoids are the white material just beneath the peel of citrus fruits, peppers, buckwheat, and black currants.