In the performance‑enhancement context, “steroids” usually refers to synthetic derivatives of testosterone designed to promote muscle growth and strength. Dianabol (methandrostenolone) is a fast‑acting oral often used to kick‑start bulking cycles with rapid size and strength gains. Anavar (oxandrolone) is a milder oral popular for cutting due to its lean, dry look and relatively lower androgenic profile. Testosterone enanthate is a long‑ester injectable base compound in many cycles because it closely mimics natural testosterone. Nandrolone decanoate (Deca‑Durabolin) is valued for joint relief and steady quality mass gains over longer cycles. Trenbolone acetate is a powerful injectable known for dramatic strength, hardness, and recomposition effects, but also for a higher side‑effect burden.