Firstly, RAD-140 is also known as RAD140 and Testolone. If you'd rather watch a video, scroll to the bottom.
For building muscle, RAD-140 looks very promising, with an impressive anabolic to androgenic ratio of 80:1! This means that users can experience a wealth of muscle building effects without all the associated androgenic side effects.
RAD-410 has been shown to be more anabolic than testosterone.
Dosing appears to be in the 4mg to 12mg range, with optimal cycle length being 4 to 6 weeks. Given its shorter half-life (16 hours), RAD needs to be dosed at least twice daily.
One side effect worth talking about is testosterone suppression. If you take too much RAD-140 for a longer period of time, your natural hormone production will become suppressed. This means that you might end up needing a SARMs PCT to help your hormones recover.