... It also can cure the chronic decay of vein enginery, reduce the probability of the diabetes mellitus, lighten and soften the skin, ... Seed Extract? OPCs (Oligomeric Proanthocyanidins) are a set of bioflavonoid complexes that perform as free radical scavengers in the ... human body. Many names refer to this set of bioflavonoids, including OPCs, Oligomeric Procyanidolic Complexes, leuco anthocyanin, ...