... Polyphenol, Procyanidin, Resveratrol. 3. UV/HPLC Test 4. GMP Factory 5. Quick Shipment Name: Grape Seed Extract, Grape Skin Extract, Wild Grape Extract PowderPlant Origin: ... Vitis vinifera LUsed Part: Seed,SkinActive Ingredients: phenolics, procyanidin, polyphenolAppearance:Red brown powder Grape seed extract polyphenols ...