Yam powder extract
Yam is the tuber of Dioscoreaceae Dioscorea opposite Thunb. The main active ingredient is dioscin and its aglycon diosgenin , and it also contains d-Abscisin Ⅱ, 3,4-dihydroxyphenylethylamine, mannan , phyto Phytic acid, dopamine, batatasine (0.025%), abscisin Ⅱ, cholesterol, ergosterol, camps-terol, β- Sitosterol, allantoin, batatasin Ⅰ, etc.