S-23 is a true Selective Androgen Receptor Modulator (SARM). It was developed for therapeutic applications, mainly as a male hormonal contraceptive. It is one of the newer SARM compounds available on the market only a few short years ago.

Proposed Benefits

Muscle Mass Enhancement: S-23 can increase lean muscle mass and enhance endurance.

Androgen Receptor Binding: S-23 has a very high affinity for binding to the androgen receptor. Way higher than RAD-140 or LGD-4033.

Fat Reduction: Many users have a drop in body fat during S-23 cycles.

Bone Health: S-23, in some anecdotal investigations, helps bone health, making stronger joints.

Mechanism of Action

S-23, like other SARMs, is believed to selectively bind to androgen receptors in muscle and bone tissues, ostensibly promoting increased muscle mass and bone density by stimulating anabolic activity in these tissues. The notion behind SARMs is that this selectivity allows for beneficial androgenic effects in targeted tissues without invokingundesired side effects typically seen with anabolic androgenic steroids.