As its name suggests, human growth hormone is an important mediator of the human growth process. This hormone is produced endogenously by the anterior pituitary gland, and exists at especially high levels during childhood. Its growth promoting effects are broad, and can be separated into three distinct areas: bone, skeletal muscle, and internal organs. It also supports protein, carbohydrate, lipid, and mineral metabolism, and can stimulate the growth of connective tissues. Although vital to early development, human growth hormone is produced throughout adulthood. Its levels and biological role decline with age, but continue to support metabolism, muscle tissue growth/maintenance, and the management (reduction) of adipose tissue throughout life. Somatropin specifically describes pharmaceutical human growth hormone that was synthesized with the use of recombinant DNA technology. Somatropin (rhGH) is biologically equivalent to human growth hormone (hGH) of pituitary origin.

How to use : When used for physique or performance-enhancing purposes, somatropin is usually administered at a dosage between 1 IU and 6 IU per day (2-4 IU being most common).The drug is commonly cycled in a similar manner to anabolic/androgenic steroids, with the length of intake generally being between 6 weeks and 24 weeks. The anabolic effects of this drug are less apparent than its lipolytic (fat loss) properties, and generally take longer periods of time and higher doses to manifest themselves.