Product Name: 98% Resveratrol, Polygonum Cuspidatum Root Extract Powder, Totally Natural, Anti-Oxidant Model NO.: RFBLLC State: Powder Application: Food, Health Care Products, Medicine Application Form: Paste, Tablet, Capsule Assay Method: HPLC, UV Certification: ISO, FDA, HACCP Name: Polygonum Cuspidatum Extract Appearance: White Powder Solubility: Soluble in Ethanol Active Ingredients: Resveratrol Content: 98% Extracting Solvent: Ethanol Testing Method: HPLC Botanical Source: Polygonum Cuspidatum Sieb.Et Zucc. Part Used: Root Grade: Cosmetics Trademark: Refine Transport Package: Paper Drum Specification: 25kg/Drum Origin: China HS Code: 2932999099 Product Description 98% Resveratrol, Polygonum Cuspidatum Root Extract Powder, Totally Natural, Anti-OxidantProduct DescriptionAll25%, 50%, 98%, 99% Trans-RESVERATROL are pure natural from Polygonum cuspidatum root, knotweed root.specialities:Pure white colorLow emodinLow heavy metalsNearly zero cis-resveratrol, cis-resveratrol-3-O-glucoside, trans-resveratrol-3-O-glucoside.Latin name:Polygonum cuspidatumChinese name:Hu ZhangFamily: PolygonaceaeGenus:PolygonumPlantoriginal:Polygonum cuspidatum Sieb.Part used:RhizomeSpecification: Resveratrol 1%--98% Test By HPLCIt is an antioxidant phenol and a potent vasodilator that inhibits serum triglyceride synthesis, lipid per-oxidation, and platelet aggregation.It is extensively used for treatment of blood vessel disease such as atherosclerosis and hyperlipidemia. In addition, it has anti-virus and anti-inflammatory activity, can treat acute microbial infections and viral hepatitis, etc.