CAS Number: 1370003-76-1
Molar Mass: 430.541 g/mol
Class: Myostatin Inhibitor, Selective Androgen Receptor Modulator
Application: Significant muscle mass gain
Cited Research: Sports Technology Labs Research Blog
YK11 is a steroidal SARM (Selective Androgen Receptor Modulator). More specifically, it’s a Myostatin inhibitor. It’s considered to be one of the most powerful SARMs on the market and it’s actually comparable to certain steroids in its effectiveness.
Because it’s a SARM, it binds itself to our androgen receptors. Unlike steroids, SARMs are selective. This means that they choose which androgen receptor to bind on so that we can get all the benefits of when they bind to muscles and no side effects that steroids cause (prostate problems etc.).
But YK11 is also a Myostatin inhibitor. This is actually the main reason why it’s getting so much attention and popularity lately. Let’s explain what this is and how YK11 actually works.
YK11 is also a myostatin inhibitor (myostatin reduces our muscle mass), which means that you won’t be losing muscle while cutting and will very likely gain some instead, making it a great compound for cutting, lean bulking and especially body recomposition.
As we said, YK11 is a Myostatin inhibitor. It’s important that we know what Myostatin and Follistatin are to understand how YK11 works.
Myostatin is a protein that reduces muscle mass in our bodies as well as our strength. Follistatin is the antagonist of Myostatin, it increases our muscle mass and strength. Basically, Follistatin keeps Myostatin in place and promotes muscle growth. Myostatin, on the other hand, blocks muscle growth.
YK11 aims to increase our Follistatin levels by inhibiting our Myostatin. Because it inhibits the Myostatin, it’s very effective at keeping our muscle mass because Myostatin can’t promote muscle loss. The results of this are increased levels of Follistatin which very effectively promote great muscle gains.
This preparation is for research purposes only and is not approved by the FDA for human use.