Started using this stack of A-HD and Solid after my PCT of Clomid for four weeks was over. I'm on week 7 of 8 and have gained 4 lbs since coming off Clomid and have a somewhat hardening look. I didn't expect much of this product since its sold at GNC but the fact that I have gained some weight while in between cycles is nice! Some of the credit may go to creatine as well but for anyone waiting in between cycles I would recommend looking at this product. It's labled as a natural test booster and estrogen blocker.