Sustanon 250 contains four esters of testosterone with different durations of action.
Sustanon injections help to increase testosterone levels. Testosterone is essential for sperm production, sex drive, getting an erection, and the functioning of the prostate gland and other reproductive structures. It also has functions in the skin, muscles, skeleton, kidney, liver, bone marrow and central nervous system.
Natural testosterone levels fall slowly with age and fall rapidly following surgical removal of the testicles (for example in the treatment of testicular cancer). Levels may also fall due to testicular disease (hypogonadism or eunuchoidism), or disease of the pituitary gland (a gland in the brain that controls hormone production).