Comparison
PT-141 vs Melanotan-2
Side-by-side attributes from our library comparison data. Read each peptide leaf for dosing math, regulatory status, and citations.
PT-141 vs. Melanotan-2
| Attribute | PT-141 | Melanotan-2 |
|---|---|---|
| FDA Status | Approved as Vyleesi® (HSDD) | Research chemical - not FDA approved |
| Mechanism | MC4R agonist (sexual circuits) | MC1R + MC4R agonist (tanning + sexual) |
| Primary Effect | Sexual arousal / desire | Skin tanning + sexual arousal |
| Tanning Effect | Minimal (MC1R activity much lower) | Strong melanin-stimulated tanning |
| Side Effects | Nausea, flushing (self-limiting) | Nausea, erections, pigmentation, moles |
| Dose | 0.5–1.75 mg per dose (SC) | 0.5–1 mg per dose (SC) |
Verdict: PT-141 is the safer, FDA-approved option for sexual health with a well-defined safety profile. Melanotan-2 adds tanning effects but carries greater risk (uncontrolled pigmentation, mole growth). For pure sexual function, PT-141 is the preferred clinical choice.