YK11 attaches itself to the AR (androgen receptor), but only inducts methods that lead to the traditional side effects of androgens such as growth of body hair and prostate and enhanced aggression - to a restricted degree.

Most SA RMS have quite limited androgenic side effects, but frequently only quite few anabolic effects when likened .

Kanno tested C2C12 muscle cells and not lab animals or humans. It has been discovered that muscle cells produce more anabolic factors if exposed to 500 nmol (nanomoles) YK11 than if you expose the same muscle cells to 500 nmol DHT.

YK11 induces muscle cells to make more folli statin (more than DHT does) - a strong myostatin inhibitor. YK11 works through the androgen receptor,with that said, YK11 can be as good as in terms of musclE.

In direct comparison to to 4033 as the reference for assay upon animal models of anabolism and androgenicity, YK-11 demonstrated higher efficacy withing anabolic parameters and lesser androgenicity at equivalent dosages.

It induces muscle cells to make more which is a strong myostatin inhibitor. Myostatin (also known as growth differentiation factor 8, is a myokine (protein) produced by muscle cells that acts on muscle cells to inhibit myogenesis. Myogenesis is muscle cell growth and differentiation. Research through the years show that when you block myostatin, it allows for significantly more muscle mass. So in research myo statin inh ibitors are researched to find cures for muscle diseases.