Testosterone is a steroid hormone from the androgen group and is found in humans and other vertebrates. In humans and other mammals, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid.
In men, testosterone plays a key role in the development of male reproductive tissues such as the testis and prostate as well as promoting secondary sexual characteristics such as increased muscle, bone mass, and the growth of body hair. In addition, testosterone is essential for health and well-being as well as the prevention of osteoporosis.
Testosterone cypionate is another ester of testosterone, but more exotic. Most popular got the drug in the U. S.. American athletes liked it more than Enanthate. Cypionate differs from the latter with less accumulation of fluid, smoother and more prolonged action.
Testosterone enanthate represent an oil based injectable steroid. Being both anabolic and androgenic drug it is commonly used steroids in bodybuilding.
The novelty of Testosterone propionate is that unlike, for example testosterone enanthate preferred by bodybuilders, Testosterone propionate only marginally retains water in the body.
Intramuscular injection of testosterone undecanoate for the treatment of male hypogonadism.Testosterone is formed by cleavage of the ester side chain of testosterone undecanoate.