Introdcution:

Resveratrol extract belongs to Anthraquinone terpenoids chemical compound. It mainly come from the extraction from of Polygonum cuspidatum’s root and rhizome. Polygonum cuspidatum is one kind of Polygonaceae plants, perennial herb bushes, up to 1m above. Many in valleys or by the shore, Polygonum cuspidatum distributes in central and southern of China, grows in jiangsu, zhejiang, jiangxi fujian shandong henan shaanxi sichuan, etc.