S4 (Andarine) — Complete Guide for Benefits, Risks & What You Must Know (2026)
S4 (Andarine) is a compound belonging to the class of Selective Androgen Receptor Modulators (SARMs). SARMs are designed to selectively bind to androgen receptors in muscle and bone tissues, theoretically producing anabolic effects similar to steroids but with fewer systemic side effects. Unlike traditional anabolic steroids, S4 targets specific tissues rather than activating androgen receptors throughout the entire body. This selective action is what makes it attractive to athletes, bodybuilders, and researchers interested in...