Testosterone propionate is a form of the male hormones testosterone. When applied the propionate ester is separated from the testosterone generating a quicker release compared to other testosterones. Due to having such a short half life, low dose applications are required every 2-3 days maximum to maintain hormone levels and avoid fluctuations. What makes propionate different from other testosterones is the extreme discomfort after an application, causing pain and swelling in the injection site. Inexperienced users may feel general discomfort related to pain caused by the testosterone.
Testosterone propionate is a modified form of the male hormone testosterone. It is an ester of a carboxylic acid-propionic acid bound to the 17-beta hydroxyl group.these modified forms of testosterone are not as polarized as the the free testosterone which generates a slow absorption from the injection site. Once the testosterone propionate is in the bloodstream, the propionate ester is separated from the testosterone making it free and active. This type of esterified steroid is designed to prolong the effect of the hormone in the body, requiring less applications compared to other steroids that are not esterified. Testosterone propionate has a half life of approximately 2 to 3 days.
All type of testosterone have the ability to aromatize in the body due to the action of an enzyme called aromatase, that is also responsible for the conversion of testosterone into estrogen. In comparison to other testosterone types that have a longer half life, testosterone propionate has a shorter half life. It does not cause hormone levels to fluctuate; although the application is more frequent there is less risk for adverse side effects. It is essential to use antiestrogens to control the estrogen levels in the bloodstream decreasing the risk of gynecomastia, water retention and body fat gain. These types of products have no hepatotoxic effects in comparison to oral substances. Like all other androgenic anabolic steroids, testosterone has the ability reduce the production of endogenous testosterone. Prolonged use could cause hypogonadism which could cause an excessive amount of muscle loss and an imbalance of anabolic and catabolic hormones at the termination of testosterone treatment. It is important to complete a proper post cycle therapy to stimulate the production of endogenous testosterone to avoid losing significant muscle mass in a short period of time.
Testosterone propionate is a fine white powder, easy to compress, stable in normal environmental condition and has a low melting point compared to other substances.
Testosterone propionate is an oil base that is generally a very light yellow to transparent in colour. In high concentrations testosterone propionate does not crystallize within the vial.