The growth hormone somatropin, also known as human growth hormone (HGH), is an endogenous hormone produced by the pituitary gland (hypophysis). The main function of the growth hormone during puberty is - as you can see from the name - to control longitudinal growth. The effect of HGH affects the bone system as well as the internal organs, the skin and much more. After puberty, HGH continues to regulate the body's metabolism.
