testosterone enanthate is a long-acting anabolic steroid used primarily in hormone replacement therapy and bodybuilding. It helps increase muscle mass, strength, and endurance while promoting fat loss. Commonly injected, it maintains stable testosterone levels in the body. Athletes and bodybuilders use it for performance enhancement, though it requires proper dosing and cycle management. Side effects include acne, hair loss, and hormonal imbalances. Always consult a doctor before use.