Testosterone is the primary androgen in the body that controls growth, development, and function of male sexual organs and characteristics. This is a controlled medication, commonly prescribed for the treatment of low testosterone levels in males (hypogonadism) who do not produce enough natural testosterone. It can also be prescribed in specific adolescent cases to induce puberty in those who are experiencing a delay. Testosterone Phenylpropionate is slightly longer in its actions than Testosterone Propionate.

Testosterone Phenylpropionate is one of the best mass building anabolics known to man. It is highly recommended as the base of both mass building and cutting cycles. Testosterone is responsible for promoting health and well-being through enhanced libido, energy, immunity, increased fat loss, gaining and maintaining lean muscle mass, preventing Osteoporosis (loss of bone density), and possible protection against heart disease. It combines excellently with many other compounds both oral and injectable as part of a potent stack.

Another advantage of this substance does not cause pain on the injection site like Test Prop. Feedback from athletes showed they preferred this to Test Prop. Because it is similar but without the discomfort at the injection site. Because of availability, Test Prop became popular amongst users who were unaware of Testosterone Phenyl Propionate. In theory and practice Testosterone Phenyl Propionate is as effective as Test Propionate. But with greater advantages on administration.