RAD 140, also known as Testolone, is a synthetic selective androgen receptor modulator (SARM) developed to mimic the effects of testosterone in the body. RAD 140 has been shown to be highly effective at increasing lean muscle mass and improving strength, without the negative side effects associated with traditional anabolic steroids.
RAD 140 selectively binds to androgen receptors in muscles and bones, causing the body to build more muscle mass and increase bone density. Additionally, it may improve endurance, muscle recovery, and reduce body fat. All of this makes it a popular choice for those looking to improve their physique and athletic performance.