The human body has a lot of hormones inside that controls all the activities, including physical development and internal systems. Before getting into the details of a testosterone booster, one must know what testosterone is and its functions. Testosterone is a natural hormone found in the male body that contributes to inducing growth characteristics. It gives physical energy to men. The levels of the natural hormone decrease with age, lowering its effects on the male body. People start taking a supplement to make their bodies healthy and fit, but the struggle is real when it comes to finding the best choice. TestRX is the perfect fit to level up your testosterone.