Compare · SARM
Testolone vs S23
Both are sarm compounds. Here's how they line up on the evidence — graded the same way.
| Testolone | S23 | |
|---|---|---|
| Evidence | 3/10 | 3/10 |
| Class | SARM | SARM |
| Summary | An investigational, non-approved selective androgen receptor modulator (SARM) with no published human efficacy evidence for fitness use, a documented serious liver-injury case, and prohibited status in sport. | S23 is a synthetic selective androgen receptor modulator (SARM) — not a peptide — studied only in rodents as a male contraceptive candidate. There are no human trials, and it is an unapproved drug banned in sport. |
| Full profile → | Full profile → |
Testolone
Testolone (RAD-140) is a selective androgen receptor modulator, or SARM (a drug that switches on the body's testosterone-sensing receptor in a targeted way). It is a small molecule made in a lab — not a peptide, and not an anabolic steroid. It was created as an experimental drug, was never approved…
S23
S23 is a lab-made drug in a family called SARMs (selective androgen receptor modulators — molecules that switch on the same cell "docking points" as testosterone, but only in certain tissues). It is not a peptide. The idea behind it was to build up muscle and bone while having relatively little…