[The source of the plant] Knotweed department Giant knotweed rhizome, lily department and loose department plant. [Active ingredient] Trans-Resveratrol [Main specifications] 20% 50% 95% 98% [Pharmacology function] It can prevent low density fat albumen from oxidize , have potential prevention and cure cardiovascular disease , gives protection against cancer , antivirus and immune regulating action , its function is shown as its anti-oxidant characteristic mainly.. Antibiotic antivirus , antitumor , resists the hepatitis , suppresses the agglutinate production with plain B2 of thrombus of blood platelet.