That being said, these two products are often sold together with SARMs, as they're all classified under the umbrella term of ' research chemicals ,' so we decided to include them in this list. Testolone (RAD 140) ' Best SARM Overall. Testolone, also known as RAD 140, is one of the best SARMs currently on the market, and is particularly great for doing a lean bulk or for focusing on fat loss, cutting stacks. Many people who take RAD 140 for just 8-12 weeks report gaining up to 15-20 pounds of lean muscle mass, and losing fat at the same time. It's easily one of the top SARMs for overall muscle growth and fat loss.Aside from stimulating fat loss, Cardarine is capable of increasing exercise duration and at the same time reducing recovery time between sets, cutting stacks.