What is the use of YK11 powder CAS 1370003-76-1
YK-11 is a synthetic steroidal selective androgen receptor modulator (steroidal SARM). It is a steroid compound based on 5-α-dihydrotestosterone (DHT), which is a gene-selective and partial agonist of the androgen receptor (AR). YK11 is so far the only SARM that is able to increase the expression of the activin binding protein Follistatin (FST), and right the induction of FST plays a key role in its anabolic effects. YK11 has the chemical formula C25H34O6 and molecular mass 430.541 g·mol−1. YK11 aims to increase our Follistatin levels by inhibiting our Myostatin. Because it inhibits 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 promotes great muscle gains. Almost all sports bodies, including the Olympics, listed YK11 as a prohibited substance because of the unfair advantages that it gives (increased muscle mass, strength, etc.). It’s listed as a banned substance by the WADA (World Anti Doping Agency) and the USADA (the United States Anti Doping Agency).
Follistatin also binds to the androgen receptor but has the opposite effect of myostatin, increasing the number of cells within muscles. This leads to increased muscle cell division, helping users reach their fitness goals more quickly than they would otherwise be able to do so. Studies have shown that YK-11 is more potent than other myostatin inhibitors currently available on the market. In fact, it is thought to be around 11 times more powerful than testosterone at promoting muscle growth. This makes it a very effective supplement for those looking to increase their muscle mass and strength. YK-11 has been used regularly by bodybuilders and athletes to increase their performance, as well as for aesthetic purposes.