S-23 is a selective androgen receptor modulator research product.
Also known as s-23 · s23
Current picks · Nov 14, 2026
S-23 picks by exact product.
Up to three of the lowest effective prices per exact product among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for that product and strength tested within 12 months. Affiliate relationships never affect picks or their order.
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S-23 price comparisons.
0 of 0 exact products have at least one pick. Vendor counts reflect the current price observations.
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Vendor profiles and catalog information are still available below.
What it is
A plain-language overview.
An androgen receptor modulator. The listed molecular formula is C18H13ClF4N2O3. PepGrades separately preserves the catalog category because a chemical identity record does not establish a use, outcome, or product quality.
Research evidencehuman research
This label describes the available research record, not whether the compound is safe or effective for an individual.
Research context
What has been studied.
5 registered studies were found under this name in the current review. Each study still needs to be checked for the exact compound identity, population, endpoints, and results.
S-23 is commonly sold or discussed for muscle, strength, performance, and body composition goals. That describes market demand, not proof that the compound is safe or effective.
Market demand and online discussion do not establish product quality, safety, or effectiveness.
Vendor directory
S-23 across 3 vendors.
Grades describe the vendor record overall, not a test of every product. Lowest prices are effective single-package prices across formats; open a comparison for the exact product.