Product Name: Polygonum Cuspidatum L. Extract Also called Giant Knotweed Extract Latin Name: Rhiaoma Polygoni Cuspidati Part Used: Root Solvent Used: Ethanol& Water Active Ingredient: Resveratrol, also called trans-resveratrol Specification: 50%, 98%, 99%, 10% Water soluble Test Method: HPLC Appearance: Brown to white / off white fine powder Packing size: 25kg/carbon drum; 1kg/bag Other Status: Natural Ingredient, No synthetic part, Non-GMO, Non-IR, Non-ETO, BSE Free. Shelf Life: 2 years Country of Origin: China Sample Status: 10g free sample is available Resveratrol: CAS No.: 501-36-0 Molecular Formula: C14H12O8 Molecular Weight: 228.2 Applications: Pharmaceutical: Heart diseases Anti-diabetic Osteoporosis Improve memory Senile dementia  Dietary Supplement: Cancer prevention and treatment Prevent tumor growth Prevent cardiovascular diseases Protect brain decline Treat Senile dementia Anti-oxidation Anti-diabetes Anti-Cancer Anti-Aging Weight Lossing   Cosmetic: Anti-Oxidation Anti-Aging Skin Moisturizing & Whitening Protect UV radiation protect skin cells against free radical damage