View the latest HPLC-Assay: Concentration (3rd-party lab test) on S-23

1 bottle (30mL) of S-23, dosed at 5mg/mL:

  • Increase Muscle Tissue
  • Fat Oxidation
  • Enhance Recovery
  • Increase Strength
  • No Water Retention

Stacks well with:

1-Andro4-AndroYK-11, GW-501516, S-4, & MK-2866.

Application of S-23

S-23 seems to be the most potent SARM to-date.

S23 increases lean mass and bone mineral density. S23 decreases fat mass in a dose-dependent manner in an indirect way.

S23 has a very high binding affinity for the androgen receptor. To put this in perspective, RAD140 demonstrated an excellent affinity for the androgen receptor with a Ki of 7 nM.

The mean terminal half-life of S23 in rats is 11.9 hours and while one could dose it once per day, it may be more practical to split the dose of this compound to maintain stable blood levels.

Anecdotally, S23 is reported to show diminishing returns at dosages above 30 mg per day. The recommended dose range starts at 5mg and ends at 30mg.



Learn More About S-23

Study 1

These products can be harmful, especially to the liver and lipids. Please approach experiments with test subjects utilizing 1-Andro (or any other andro) with caution.