Compare · SARM
Ligandrol vs YK-11
Both are sarm compounds. Here's how they line up on the evidence — graded the same way.
| Ligandrol | YK-11 | |
|---|---|---|
| Evidence | Preliminary human | Animal only |
| Class | SARM | SARM |
| Summary | Ligandrol (LGD-4033) is a nonsteroidal selective androgen receptor modulator (SARM), not a peptide. Its only real human data is a single 3-week Phase 1 trial; it is an unapproved drug, illegal to sell as a supplement, and banned in sport. | 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 → |
Ligandrol
Ligandrol (LGD-4033) is a nonsteroidal selective androgen receptor modulator — a SARM, and importantly a small molecule rather than a peptide. It is widely sold online and used in fitness circles as a supposedly "safer" alternative to anabolic steroids, but the actual human evidence is limited to…
YK-11
YK-11 is a synthetic compound sold as a SARM (selective androgen receptor modulator) and promoted for muscle growth. Despite the marketing, it is not a peptide — it is a steroidal molecule built on a 19-norandrostane backbone. Its reputation as a uniquely powerful "myostatin-inhibiting SARM" rests…