RAD-140 is, along with LGD-4033, one of the most popular SARMs used to build muscle mass. The SARM (Selective androgen receptor modulators) are considered a safe alternative to steroids. These compounds bind only to androgen receptors found in muscles and bones, producing local anabolic effects without systemic side effects. One of these substances is RAD-140, … Continue reading RAD-140 (SARMs) Testolone Review | Results, Side Effects