Rad140, also known as Testolone, is a Selective Androgen Receptor Modulator (SARM) that is often compared to anabolic steroids. In terms of its effects on hair loss, Rad140 has not been shown to cause hair loss in studies conducted thus far. However, it is possible that individual users may experience hair loss as a side effect of Rad140 use, though this appears to be relatively rare. In terms of preventing hair loss, Rad140 may actually offer some benefit; one study found that Rad140 was able to partially reverse hair loss caused by testosterone treatment in mice. While more research is needed to confirm these findings in humans, the results suggest that Rad 140 could potentially be used as a treatment for androgenic alopecia (male pattern baldness).