Genotropin is an injectable drug representing a synthetic human growth hormone produced with recombinant DNA technology. It is also called Somatotropin and refers to the growth hormone produced natively in animals. Among athletes and bodybuilders it is used to gain extra muscles and to burn the unnecessary fat in the human body. It also increases the energy levels, improves the skin texture and immune system functions. Genotropin helps the body to recover between workouts and posses the ability to increase calcium retention and to strengthen the mineralization of bones.