Testolone (also known as RAD-140) has become one of the most widely used and respected SARMs on the market in recent years. This SARM makes for a perfect first time SARM because of the minimal side effects and its ability to mimic testosterone. RAD-140 is known to add significant amount of lean muscle mass in short periods of time. It will not add as much weight as something like Ligandrol, but it won’t cause water retention either, meaning that what you gain will be mainly lean muscle mass. RAD-140 provides amazing vascularity along with a dry and hard look.