Answer: All progesterone on the market is synthetic, derived from wild yam. But it is identical to the natural progesterone in our own bodies.

Synthetic progesterone is not to be confused with the fake progesterone look-alikes called progestins. Even on Wikipedia, there is some confusion. Because natural progesterone cuts into the market for the dangerous fake progesterones marketed by pharmaceutical companies valid information can be hard to come by. Nobody is getting rich off of natural progesterone.