Nandrolone phenylpropionate also known as durabolin is an injectable hormone of fast acting nandrolone. Similar to testosterone propionate when applied the phenylpropionate ester is quickly separated from the nandrolone generating a faster release than other nandrolones. Due to having such a short half life, frequent applications of lower doses are required every 3 to 4 days to maintain a balance in hormone levels and avoid fluctuations. This type of nandrolone phenylpropionate is not commonly found on its own. It is generally prefered by athletes when it is in its decanoate version because it requires less applications.
Nandrolone phenylpropionate is a modified version of the masculine hormone nandrolone. It is an ester of phenylpropionic acid bonded to the 17-beta hydroxy group. This modified form of nandrolone is not as polarized which generates a slow absorption into the bloodstream. Once in the bloodstream the phenylpropionate ester is separated from the nandrolone making it free and active. This type of esterified steroid is designed to prolong the effect of the hormone in the body, requiring less injections compared to other steroids that are not esterified. The half life of nandrolone phenylpropionate is approximately 4 days.
Nandrolone has the capacity to aromatize in the body due to the action of an enzyme called aromatase, this is also responsible for converting testosterone into estrogen. Unlike other nandrolones with a longer half life, nandrolone phenylpropionate does not have such high hormone fluctuations. Although it must be applied frequently the risks of adverse side effects are less. It is recommended to use antiestrogens to control the estrogen levels in the bloodstream decreasing the risk of gynecomastia, water retention and body fat gain. This type of product has no hepatotoxic effects compared to oral substances. Like all androgenic anabolic steroids, nandrolone has the capacity to reduce the productions of endogenous testosterone. Prolonged use could cause hypogonadism which could cause an excessive loss of muscle mass,an imbalance in catabolic and anabolic 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.
Nandrolone phenylpropionate is a white crystallised powder, easy to compress and stable in normal environmental conditions.
Nandrolone phenylpropionate is an oil base which is generally a light yellow colour. In normal concentrations it does not crystallise within the vial. Its viscosity in comparison to other substances is higher and it is not commonly found on its own.