Androgel is a topical gel formulation that delivers synthetic testosterone to the skin for hormone replacement therapy. It is prescribed to men who have clinically low testosterone levels a condition known as hypogonadism. The active ingredient testosterone penetrates the epidermis and binds to intracellular androgen receptors to modulate gene expression. Activation of these receptors promotes the synthesis of proteins that support muscle mass bone density and sexual function. By restoring normal circulating testosterone levels the gel helps alleviate symptoms such as fatigue reduced libido and loss of strength. The sustained release of testosterone from the gel maintains physiological balance without requiring oral administration or injection.

Androgel is a topical testosterone gel. It contains a synthetic form of the male hormone testosterone that is absorbed through the skin. Once absorbed, the hormone enters the bloodstream and binds to androgen receptors in target tissues. This binding triggers cellular responses that enhance muscle mass, libido, and secondary sexual characteristics. The resulting activation supports physiological processes such as spermatogenesis and bone density maintenance. Clinically, it is prescribed to treat testosterone deficiency in adult men.

Androgel may cause skin irritation at the application site. Some users report elevated blood pressure or fluid retention. It can affect bladder function leading to increased frequency or urgency. Mood changes such as irritability or mood swings are occasionally reported. Hormonal fluctuations may lead to acne or oily skin. Rarely, it can influence prostate specific antigen levels in some individuals. Some individuals experience sleep disturbances or changes in libido. Long term use may influence cholesterol levels in certain populations.

Androgel may cause skin irritation at the application site. Some users experience an increase in facial or body hair growth. Fluid retention can lead to swelling in the ankles or feet. Elevated red blood cell production may raise the risk of blood clots. Mood changes such as irritability or aggression have been reported. Breast tissue development can occur in a small number of cases. Decreased sperm count may affect fertility in certain individuals. Sleep apnea has been observed in some users during treatment.