What is YK-11?

YK-11, also known as Myostine, is a synthetic steroidal selective androgen receptor modulator (SARM) and myostatin inhibitor. It is commonly studied for its potential to promote muscle growth by increasing follistatin levels, which in turn may suppress myostatin—a protein that limits muscle development. YK-11 is frequently explored in research focused on muscle hypertrophy and strength enhancement.

YK-11 Research Based Benefits

May support studies on muscle mass increase and strength development
Known for its potential role in myostatin inhibition and follistatin expression
Could aid in research on sarcopenia and age-related muscle loss
Useful for investigations into anabolic activity with selective androgenic effects
May contribute to improved performance, recovery, and lean body composition in studies

Molecular Formula
C25H34O6

YK-11 Product Features

Contains 90 capsules, each delivering 4mg of YK-11 (Myostine)
Research-grade compound for advanced muscle and strength studies
Easy-to-administer capsule format for consistent dosing
Ideal for research on muscle building, myostatin pathways, and physical performance
Securely packaged for long-term stability and safe handling