One of the newer SARMs is RAD-140, also known as Testolone. What is known about this compound is that it is very effective for muscle gains and bulking. In fact, it is now considered as one of the best SARMs for muscle growth, making Testolone a common addition to a SARMs cycle.

Testolone has been created to potentially treat multiple health conditions including enlarged prostate, muscle wasting and as a testosterone replacement therapy.