1. The Benefits of Supplemental Testosterone
In men, testosterone is the hormone that increases libido. Increased libido through proper hormonal balance usually results in an overall greater enjoyment of the sexual experience.

2. Increased Lean Muscle
Significant increases in the male body’s muscle tone, lean muscle mass, and a rapid recovery from exercise occur as a result of achieving normal testosterone hormone levels in males.
A study authored by Joyce Tenover in the Journal of Clinical Endocrinology Metabolism demonstrated a significant increase in lean muscle mass and body weight (due to increased muscle mass) in 13 healthy males ages 57 to 76 receiving 100-mg weekly injections of testosterone.

3. Protection for the Heart
Researchers in a study published in Arteriosclerosis and Thrombosis (1994) noted so many correlations between the severity of coronary artery disease and low testosterone levels. They concluded low testosterone levels may be a risk factor for coronary artery disease in men.