Obi-wan
Member
- Joined
- Mar 16, 2017
- Messages
- 1,120
My thoughts it only works if it is made in a pharmaceutical lab hence USP. I use both Natpro and Progestine. Per Wray Whyte the so called yam extracts that claim to be bio-identical do not work. I question Progest-E since I think it was reformulated. Natpro allows me to take 50 mgs at once and it works!