Testosterone Propionate (Estosterona P 100 mg) is a commonly-prepared, injectable testosterone oil-based compound. Testosterona P 100mg is a long-purified testosterone product from steroidsoutlet.com Pharmaceuticals that contains testosterone propionate. It is the shortest deesterified testosterone preparation currently available on the market. The propionate ester slows down the rate at which the steroid is released from the injection site, but only for a few days. Its anabolic activity corresponds to its androgenic activity, it is comparatively much faster than other testosterone esters. Testosterona P 100 mg has a short half-life and is active in the system only one day after injection. It is a powerful mass drug, able to produce quick gains in size and strength. Testosterona P 100 mg comes in 5 x 1 ml ampoule (200 mg testosterone propionate / ml).