Test E 300mg is a slow acting injectable steroid. It is simply testosterone with the Enanthate ester bound to the Testosterone chemical structure. Athletes and bodybuilders utilizing it for performance and physique enhancement. Testosterone Enanthate is highly favored by athletes for its ability to promote strong increases in muscle mass and strength. It delays relatively less water than Sustanon and its analogues, which in turn affects the quality of the increase in dry muscle mass. Test E 300 (Testosterone Enanthate) used deep intramuscular injection, once in the bloodstream, the ester is removed to yield active testosterone. It is designed to provide a sustained release of testosterone into the bloodstream for approximately 2 to 3 weeks. Testosterone Enanthate has half life is approximately 10 days, providing a slower release and activity of the hormone. Its injections are usually required at least every two weeks, in order to maintain normal physiological levels of testosterone during androgen replacement therapies. Esterified forms of testosterone are designed to prolong the window of therapeutic effect following administration, allowing for a less frequent injection schedule compared to injections of unesterified steroid. The half life of testosterone enanthate is approximately eight days after injection.