YK-11

YK-11 is a synthetic selective androgen receptor modulator (SARM) studied for its unique interaction with myostatin signaling pathways. Unlike traditional SARMs, YK-11 has been researched for its potential role in limiting myostatin activity while simultaneously influencing follistatin expression—two mechanisms closely tied to muscle development models.
Preclinical research suggests YK-11 binds to androgen receptors and may promote anabolic signaling associated with muscle cell differentiation and growth. Because of this dual mechanism, YK-11 has attracted interest in laboratory studies focused on lean mass potential, strength pathways, and advanced recomposition research.
YK-11 is supplied strictly for laboratory research purposes and is not intended for human consumption.