If you want to keep your sex life and gym life healthy, it's impossible to overstate the importance of testosterone. The hormone plays a key role in both building lean muscle mass and maintaining a healthy reproductive system—not to mention staving off "manopause" and all its nefarious side effects.

So man up, dude, and take a look at this compilation of proven T-boosting supps to see how they can help you keep your testosterone levels in top shape.