Like Ibutamoren, YK-11 behaves differently from traditional SARMs. YK-11 works by inhibiting myostatin and encouraging follistatin production.

 Myostatin is a growth factor that limits muscle growth. Meanwhile, follistatin is a glycoprotein that promotes muscle growth. Thus, like other SARMs, YK-11 builds muscle mass and strength.

Most users find a daily dose of 10-15mg gives effective results


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