... Extract 5% 1. Red-brown fine powder 2. Polyphenol, Procyanidin, Resveratrol. 3. UV/HPLC Test 4. OEM Grape Reseveratrol Extract 5 ... % Herbal Nature Extract, Herbal Plant Extract, Nature Plant Extract Name: Grape Seed Extract, Grape Skin Extract, Wild Grape Extract ... polyphenol, ProcyanidinAppearance:Red brown powder Grape seed extract may have other possible anti-disease properties, ...