SARMs (Selective Androgen Receptor Modulators) are a class of therapeutic compounds that have similar anabolic properties to anabolic steroids, but with reduced androgenic (producing male characteristics) properties. Unlike steroids, which affect the entire body, SARMs are tissue-selective, aiming to target specific pathways in the body. This means they potentially offer the muscle-building benefits of steroids without many of the unwanted side effects, such as liver damage or male pattern baldness.