RAD-140 (Testolone) is a SARM (selective androgen receptor modulator), which works by selectively binding to some androgen receptors in the body – specifically those in muscle tissue and bone tissue. These receptors “talk to” the steroid hormones called androgens, including testosterone.
RAD 140 is thought to help increase muscle mass, boost fat burning and fat loss, and may even have neuroprotective benefits. It is also popular with men who are experiencing low testosterone levels and want to boost their physical performance and physique alongside getting their test levels up.