Two melanocortin-receptor agonists studied for pigmentation and sexual-function endpoints. Here's a neutral, sourced side-by-side — no hype, every claim links to its evidence.
Also: Melanotan-2, MT II
Melanotan II is a lab-made substance that acts like a natural hormone in your body. It belongs to a group of substances called melanocortins.
Also: PT-141, Vyleesi
Bremelanotide, often called PT-141, is a lab-made medicine used to help with sexual problems. It is a special kind of drug approved by the FDA to treat women who have a very low sex drive.
| Melanotan II | Bremelanotide | |
|---|---|---|
| Research status | Preclinical | Preclinical |
| Benefits documented | 25 | 100 |
| Research citations | 15 | 83 |
| Dosing routes | — | Subcutaneous |
| Known side effects | 28 | 51 |
Top documented benefits — backed by research.
Reported protocols — research only, not medical advice.
Not yet documented for Melanotan II — being compiled.
Key studies — click through to verify each on PubMed.
15 sourced studies
83 sourced studies
Neither is a “winner” — they suit different goals. Compare the documented benefits and evidence above against what you’re actually trying to achieve, note the research status (approved vs research-stage), and read each full guide before deciding. Many people also stack peptides rather than pick one.
Source Melanotan II
Source Bremelanotide