PT-141 vs Melanotan II
Selective MC4 arousal peptide vs broad melanocortin agonist.
| Attribute | PT-141 Bremelanotide | Melanotan II MT-II |
|---|---|---|
| Category | Sexual Function & Hormones | Skin, Hair & Beauty |
| Best known for | Sexual arousal research via melanocortin pathway | Tanning research |
| In plain English | Unlike Viagra which works on blood flow, PT-141 works on the brain's arousal circuit. Researchers study how it triggers desire centrally rather than mechanically. | MT-II is the tanning peptide. Researchers study how it activates melanin production with secondary effects on appetite and libido. |
| How it works | Activates MC3R and MC4R in the central nervous system, modulating dopaminergic pathways linked to sexual desire and arousal. | Non-selective melanocortin receptor agonist (MC1R for pigmentation, MC4R for libido and appetite). |
| Researchers study | Hypoactive sexual desire disorder, female sexual dysfunction, and male erectile response. | Melanogenesis, sexual function, and appetite suppression. |
| Internet discussion | Heavy discussion around onset time, dose, and the flushing/nausea side effects. | Cult following for tanning, but nausea and mole changes are common discussion points. |
PT-141
Sexual arousal research via melanocortin pathway
Unlike Viagra which works on blood flow, PT-141 works on the brain's arousal circuit. Researchers study how it triggers desire centrally rather than mechanically.
Activates MC3R and MC4R in the central nervous system, modulating dopaminergic pathways linked to sexual desire and arousal.
Hypoactive sexual desire disorder, female sexual dysfunction, and male erectile response.
Heavy discussion around onset time, dose, and the flushing/nausea side effects.
PT-141 is a melanocortin agonist studied for central nervous system effects on sexual desire and arousal.
Melanotan II
Tanning research
MT-II is the tanning peptide. Researchers study how it activates melanin production with secondary effects on appetite and libido.
Non-selective melanocortin receptor agonist (MC1R for pigmentation, MC4R for libido and appetite).
Melanogenesis, sexual function, and appetite suppression.
Cult following for tanning, but nausea and mole changes are common discussion points.
Melanotan II is a non-selective melanocortin agonist researched for tanning and sexual function.