YK-11 (360mg/30ml)

YK-11 is a synthetic SARM (Selective Androgen Receptor Modulator) that also acts as a myostatin inhibitor. It is designed to promote muscle growth by selectively binding to androgen receptors, similar to other SARMs, but also by inhibiting myostatin, a protein that limits muscle growth. This dual action potentially makes YK11 one of the most potent SARMs for muscle building. It is commonly researched for its potential to increase muscle mass, enhance strength, and improve physical performance, with fewer side effects compared to traditional anabolic steroids.