INJECTIBLE STEROIDS

AASs are synthetic versions of the primary male hormone, testosterone. They affect many parts of the body, including the muscles, bones, hair follicles, liver, kidneys, blood, immune system, reproductive system and the central nervous system.

During puberty, increases in testosterone levels enable the development of characteristics such as facial and body hair growth, increased height and muscle mass, a deepening voice, and the sex drive.

Testosterone can also contribute to competitiveness, self-esteem, and aggressiveness.