This guy I know is selling some Progesterona it's supposed to be 25mg, and his father is a pharmacist in Cuba sending him the stuff here. He swears to have gained over 30+ from using this product and I've seen him he really did gain, but the only problem I have is that I have never heard of this product before, so does anyone out there now anything about this and if it is that good? or will I spend my money of regular Test. by the way he is selling a vial for $25US if that helps anymore. I would really appreciate it if someone gave me some insight and additional information on this product. THANKS!