Steel-Libido...This Stuff is SUPER AWESOME!!! What I have found is that it works great by itself, but if you use it with a Product called Stamina RX, LOOK OUT!!! You become a LEAN, MEAN, KNOCK YOUR BOOTS MACHINE!!! Or if you can do what I like to do and take two in the Morning or early afternoon, then take two more before sex. You can take 4 like the bottle recommends, but if you don't have a strong Stomach, then don't....By the way, it Added Size as well, something I didn't need, but like anyways.