S23 is popular in the world of bodybuilding that works effectively on the bones, joints, and muscle tissues. It aims to fortify specific muscles and tissues to support the body in building perfect muscle mass. There are multiple clinical trials to have the best recommendation of dosage to a range of 10-30 mg per day. Some are taking the dose in a split manner; day and night. This is to promote consistent support to your body. However, an overdose is discouraged.

- A 3rd gen SARM. Simlar to S-4, but higher AR affinity. Strong effects on muscle growth and strength gains.
- Known for: Muscle mass growth, bulking
- Commonly stacked with: Typical bulking stack: S-23, YK-11, MK-677 | optional: MK-2866
- Side-effects: Testosterone suppression with prolonged use; no reports of other adverse side-effects