Compare · SARM
LGD-3303 vs Ostarine
Both are sarm compounds. Here's how they line up on the evidence — graded the same way.
| LGD-3303 | Ostarine | |
|---|---|---|
| Evidence | Animal only | Preliminary human |
| Class | SARM | SARM |
| Summary | LGD-3303 is a nonsteroidal selective androgen receptor modulator (SARM), not a peptide. Its evidence is preclinical (rodent) only — there are no human trials. It is an unapproved research chemical and is banned at all times in sport. | Ostarine is an investigational selective androgen receptor modulator (SARM) — not a peptide — with real but limited human evidence for lean-mass effects, no regulatory approval anywhere, and documented liver-injury and hormone-suppression signals. |
| Full profile → | Full profile → |
LGD-3303
LGD-3303 is a nonsteroidal selective androgen receptor modulator — a SARM, and importantly a small molecule rather than a peptide. It comes from the same Ligand Pharmaceuticals program as LGD-4033 (ligandrol), but it is a separate compound and should not be confused with it. The only real evidence…
Ostarine
Ostarine (MK-2866 / enobosarm) is a selective androgen receptor modulator that is frequently — and incorrectly — sold on the gray market as a "safer steroid alternative" for muscle building. It is not a peptide and not a dietary-supplement ingredient. There is genuine human evidence that it raises…