Proptoro 100 ™ is the most potent, naturally occurring androgen that is formed in the human body. It is responsible for characteristics specific to males and their sexual traits. This hormone is primarily secreted in the male gonads (testes), yet a very small amount is also secreted by the adrenal glands. The key roles of this hormone include: promoting health and well-being through enhanced libido, energy, immunity, increased fat loss, gaining and maintaining lean muscle mass, preventing Osteoporosis (loss of bone density) and possible protection against heart disease. Proptoro 100 ™ is the primary male sex hormone. It is the one responsible for producing mainly male-specific sexual traits. When synthesized, it is usually attached to an ester to delay its release into the body. Proptoro 100 ™ is the shortest commonly ester attached to the testosterone hormone. This means it takes your body the least amount of time to rid itself of the ester and release the parent hormone into the body. This compound exhibits a short active life. Proptoro 100 ™ is partially converted to both estrogen as well as Dihydrotestosterone. Often this is the cause of many estrogenic related side effects such as Gynecomastia, water retention, hair loss and prostate enlargement. Also, as with most steroids, injected testosterone propionate will inhibit your natural Proptoro 100 ™ levels; however, the advantage with the propionate version is that it will clear your system more quickly than others, allowing you to begin recovery more rapidly