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 | 3/10 | 7/10 |
| Class | SARM | SARM |
| Summary | LGD-3303 is a nonsteroidal selective androgen receptor modulator (SARM), not a peptide. Its evidence is preclinical (rodent and equine) 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 SARM — a selective androgen receptor modulator (a lab-made molecule that switches on the body's androgen, or male-hormone, receptors in some tissues but not others). It is not a peptide, and it is not a steroid. It came out of the same Ligand Pharmaceuticals research program as…
Ostarine
Ostarine (also called MK-2866 or enobosarm) is a selective androgen receptor modulator (a compound designed to act like a muscle-building hormone in some tissues but not others). It is often — and wrongly — sold online as a "safer steroid alternative" for building muscle. It is not a peptide, and…