When combined with a solid weight training program, 17-HD boosts your strength, size and workout power by elevating the serum levels of free testosterone in your body. The patent pending hydroxalation process in 17-HD rearranges the hydrogen and oxygen molecules on the natural steroid ring of a highly anabolic South American plant source. However, 17-HD has no additional synthetic “side chain” attached. The potent substrate in 17-HD is in your system in a matter of minutes giving a rush of pure power to every muscle cell in your body. 17-HD is not only highly androgenic and anabolic but it also causes rapid cell regeneration. Plus, studies show that 17-HD is anti-estrogenic as well.