RAD140, also known as Testolone, is a SARM, a selective androgen receptor modulator. There is little danger of nonskeletal muscle tissues experiencing androgen activity. In fact, RAD-140 has the highest ratio of anabolic to androgenic activity of any SARM discovered, 90:1.
Testosterone has an anabolic to androgenic ratio of 100:100. This means that Testolone is almost as anabolic as testosterone while being only 1/100th as androgenic. This is a positive as most of the negative side effects of testosterone, including effects on liver, kidney and prostate, come from its androgenic effects.
*Not for human consumption