The source of the plant] Any of various leguminosae perennial herbs, It is mainly distributed in Northeast, Hu'nan, Jiangsu, Anhui, Zhejiang, Jiangxi, Guizhou, Yunnan provinces of China.
[Active ingredient] The main active ingredient is isoflavone , such as Abiochanin A, Formononetin, Daidzein, Genistein, Sission, Ononin, Daidzin, Genistein and so on.
[Main specifications] 8%, 10%, 20%, 40%, 60%