MYOSTATIN Yk-11 / 5mg * 50

YK-11 is a type of myostatin inhibitor that is different from other SARMs, and it has a very strong muscle hypertrophy effect by suppressing the protein myostatin that limits muscle growth. YK-11 is still a new compound, and there are some parts where the results of full research have not yet been released.
YK-11 not only selectively binds to androgen receptors, but also inhibits myostatin in muscle, allowing for rapid muscle growth without inhibiting muscle cell proliferation.
It appears that side effects similar to those of steroids have been confirmed, but research is still in progress and no major side effects from long-term use have been identified.