Resveratrol, a non-flavonoid polyphenolic compound, is widely found in the skin of red grapes, nuts, berries, Polygonum cuspidatum root, etc. It is reportedly known to exhibit pharmacological properties including anti-cancer, anti-inflammatory, antioxidant, neuroprotectant, anti-atherogenic property and reduces the synthesis of pro-atherosclerotic substances.Resveratrol is anthraquinone terpenoids. It mainly comes from rhizome extract of polygonum cuspidatum. Polygonum cuspidatum: Shrubby perennial herb, up to 1 meter or more. Rhizome lying underground, wood brown, section significantly.