Testosterone Propionate is a synthetic form of testosterone that is commonly used by bodybuilders due to its fast-acting nature and a short ester tail.
Unlike other testosterone esters, such as Enanthate and Cypionate, Testosterone Propionate has a much shorter half-life. On the one hand, it means that it requires more frequent injections. However, it also delivers effects much faster — within 24 hours.
Aside from its use among athletes and bodybuilders, Testosterone Propionate is also used at lower dosages for the treatment of low testosterone levels in men.