Product name: extractive from fructus psoraleae
Plant origin: dried fruit from Psoralea  corylifolia  L.  
Plant origin: Shanxi, Shaanxi, Anhui, Zhejiang, Jiangxi, Henan, Hubei, Guangdong, Sichuan, Guizhou, Yunnan
Effective constituent: psoralen
Product specification: 5%,10% 
Testing method: HPLC
Appearance: brownishe yellow powder
Smell character: warm in nature, bitter taste
Function and uses: reinforcing kidney to strengthen yang, controlling nocturnal emission with astringent drugs; for erectile dysfunction, spermatorrhea, enuresis, deficiency of the kidney, leucoderma, alopecia areata
Solubility: soluble in ethyl alcohol, chloroform; lightly soluble in water, diethyl ether and petroleum ether

Above information has not been approved by State Food and Drug Administration yet. From published document and for reference only