Aaron Marino of alpha m. gives opinions, science, and truths behind prohormones. Prohormones boost testosterone levels. However, the body has a natural balance of testosterone and estrogen. So when you take synthetic testosterone or prohoromones, the estrogen level rises in response, which cause side effects.
You shouldn't be taking this stuff, period. You don't need extra testosterone if you are young. Synthetic testosterone will cause your body not to produce testosterone, and your testicles will respond by not producing. When you get off of them, your body will shrink to where you were before you were taking them. Thus, men stay on them longer and longer and longer. Take healthy supplements but stay away from these things that are messing with your testosterone. Do like Alpha -- go natural and build the muscle the right way.