Product Name: Grape Seed Extract Transport Package: 25kgs/drum Origin: china Product Description Grape seed extract 95% oligomeric proanthocyanidins/OPCProduct Name: Grape Seed P. E. Plant Origin: Vitis viniferaSpecification: Oligomeric Proanthocyanidins 95% OPC UVWhat Is Grape Seed Extract? Grape seed Extract Oligomeric Proanthocyanidins are a set of bioflavonoid complexes that perform as free radical scavengers in human body. Many names refer to this set of bioflavonoids, including PCO's, Oligomeric Procyanidolic Complexes, leuco anthocyanin, anthocyanidin and also others. Most of us take it as OPC's. Action: It is an proven antioxidant, and it help fight the effects of everyday stress, healthy cholesterol levels, healthy blood pressure, Vein and capillary health.