Verified ComparisonLast updated: 30 March 2026
Melanotan II vs PT-141
Melanotan II and PT-141 both target melanocortin receptors but with different biological endpoints. Melanotan II promotes melanin and skin pigmentation; PT-141 targets sexual and erectile function.
Melanotan II
Cosmetic
3.7/ 5
B
PT-141
Sexual Health
3.8/ 5
B+
Editor's note
Melanotan II targets melanin and systemic effects; PT-141 focuses on sexual function.
| Criterion | Melanotan II | PT-141 |
|---|---|---|
| Mechanism | Melanocortin analog (broad) | Melanocortin analog (MC4-R selective) |
| Primary research focus | Melanin, skin pigmentation | Sexual function, erectile response |
| Systemic effects | Widespread (melanin production) | Focused (sexual response) |
| Research literature depth | Moderate | Growing |
| Side effects profile | Melanin-related, nausea | Focused to sexual effects |
Frequently asked questions
No — they target different biological outcomes (pigmentation vs sexual function).
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