Testosterone cypionate is a steroid hormone from the androgen and is found in mammals and other vertebrates, testosterone cypionate is primarily secreted in the tests of mails and the ovaries of female, although small amount are also secreted by the adrenal glands, testosterone cypionate is the principle male sex hormone and an anabolic steroid. Testosterone cypionate plays a key role in the development of male reproductive tissue such as the testis and prostates.