YK-11 SARM is a compound known to be a myostatin inhibitor for the enhancement of muscle mass. It is known to be a super SARM that displays a stronger image of testosterone. It aims to work on the prostate, genitals, hair, potential, and physical development. Each bottle has 90 capsules that contain 5 mg which has lesser side effects. Most of the bodybuilders take 10-15 mg per day but experienced users take 30mg. Experts advise splitting the dose for better results.

- Myostatin inhibitor — reduces muscle-growth limitations imposed by naturally-occurring myostatin protein.
- Known for: Inhibiting effects of Myostatin
- Commonly stacked with: Typical bulking stack: YK-11, MK-677 and RAD-140/or/LGD-4033/or/S-4/or/S-23 | optional: MK-2866
- Side-effects: Very few reports of adverse side-effects