1. Wild Yam Extract 2. Dioscorea villosa 3. 10-98% Diosgenin HPLC 4. GMP,Kosher, Halal, ISO 9001 5. Large output Wild ... yam preparations has been attributed to adulteration with synthetic progesterone by manufacturers, although there is limited evidence in this area. ... Diosgenin?Diosgenin, a steroid sapogenin, is the product of hydrolysis by acids, strong bases, or enzymes of saponins, extracted from ...