Human growth hormone is unlikely to be administered as a single agent but often in combination with androgens. Combined administration of hGH and resistance. Some men use growth hormone as an anti-aging treatment, even though it is illegal to market it for this purpose. Studies of test subjects who took growth. The human growth hormone (HGH) helps to influence height, as well as build bones and muscles in the body. It is. View Metrics. Prior to its production by recombinant DNA technology, growth hormone used to treat deficiencies was extracted from the pituitary glands of cadavers. Annals of Internal Medicine. See here instead. Sometimes, illicit manufacturers offer hGH in an injectable form as well.