YK-11 Cas No.1370003-76-1

YK11 has only been studied in cells so far. There’s no clinical information on side effects. Not even animal studies have been carried out yet.

In a cell study, YK11 increased the levels of follistatin. High follistatin may increase the risk of esophagus, stomach, skin, and prostate cancer. On the other hand, a human study suggests that high follistatin may be beneficial for breast cancer.

The chemical structure of YK11 is very similar to other steroids that are toxic to the liver. YK11 may have toxic effects on the liver as well.

Theoretically, it may also affect the prostate, hair growth, vocal cords, and other organs.