Compare · SARM
Andarine vs YK-11
Both are sarm compounds. Here's how they line up on the evidence — graded the same way.
| Andarine | YK-11 | |
|---|---|---|
| Evidence | 3/10 | 3/10 |
| Class | SARM | SARM |
| Summary | A non-steroidal SARM with tissue-selective anabolic activity in rodents, but no completed human efficacy trials; clinical development was halted over vision side effects. | YK-11 is a synthetic steroidal SARM marketed for muscle growth, but its claimed human benefits rest entirely on cell-culture data — there are no human trials, and it is an unapproved drug banned in sport. |
| Full profile → | Full profile → |
Andarine
Andarine (S4) is a SARM — a selective androgen receptor modulator (a lab-made molecule designed to act on the body's testosterone-sensing system in a targeted way). It is a synthetic small molecule, not a peptide and not an anabolic steroid. You will often see it sold in fitness, biohacking, and…
YK-11
YK-11 is a lab-made compound sold as a SARM (selective androgen receptor modulator — a drug designed to switch on the body's muscle-building signals) and pitched as a way to add muscle. The marketing aside, it is not a peptide. It is a steroid-style molecule built on a 19-norandrostane backbone (a…