RAD-140 it is also know as Testolone. Testolone was originally developed to target conditions like muscle wasting. It is one of the most potent SARMs, making it an optimal candidate if you want to bulk up and build muscle fast. It’s also extremely selective compared to other SARMs; it doesn’t impact other hormone receptors. Initial studies on the compound reveal Testolone increases lean body mass without impacting fat mass. Testolone could also boost brainpower.