Melanotan II vs Afamelanotide
Research & educational use only. This content is not medical advice. Consult a qualified healthcare professional before using any peptide compound.
Melanotan II and Afamelanotide are both aesthetic peptides that come up together constantly. This is a side-by-side comparison on the data that actually matters — evidence tier, FDA status, human trials, and how to source each safely — not hype. It is for research and educational purposes only.
Melanotan II vs Afamelanotide: side-by-side
| Melanotan II | Afamelanotide | |
|---|---|---|
| Evidence tier | Tier 4 | Tier 1 |
| FDA status | Not FDA Approved | FDA Approved |
| Human RCTs | 0 | 3 |
| Subjects enrolled | 0 | 250 |
| Animal studies | 15 | 10 |
| Category | aesthetic | aesthetic |
| Half-life | Short plasma half-life. | Released slowly from a subcutaneous implant over days. |
| Community logs | 0 | 0 |
Key differences
Afamelanotide rests on stronger human evidence (Tier 1) than Melanotan II (Tier 4) — that means more confidence its observed effects are real rather than artefacts of weaker study designs. Afamelanotide is FDA approved for specific uses, while Melanotan II is not fda approved and treated as a research compound in the US.
Melanotan II has 0 human trials on record (0 subjects) versus Afamelanotide's 3 (250 subjects). Evidence tiers are a shorthand for how strong that human data is — see our guide to understanding peptide evidence tiers for how to weigh them.
What is Melanotan II?
Melanotan II is a synthetic cyclic analog of alpha-melanocyte-stimulating hormone (alpha-MSH) that non-selectively activates melanocortin receptors, producing skin pigmentation and other effects. It is not approved by the FDA for any use, and regulators have warned about unregulated products sold for tanning. Reported… Full Melanotan II breakdown →
What is Afamelanotide?
Afamelanotide is a synthetic alpha-melanocyte-stimulating hormone (alpha-MSH) analog approved by the FDA (as Scenesse) to increase pain-free light exposure in adults with erythropoietic protoporphyria (EPP). It is delivered as a subcutaneous implant and is supported by randomized controlled trials for that indication.… Full Afamelanotide breakdown →
Where to buy Melanotan II or Afamelanotide safely
Both are sold by research-chemical suppliers, not pharmacies, so the source matters as much as the compound. Before buying either, vet sellers on third-party lab testing and enforcement history in the ranked directory of trusted peptide sellers — or jump straight to vetted sources for Melanotan II or Afamelanotide. PeptidesHub does not sell either compound.
Frequently asked questions
Melanotan II and Afamelanotide are both aesthetic peptides. Afamelanotide rests on stronger human evidence (Tier 1) than Melanotan II (Tier 4) — that means more confidence its observed effects are real rather than artefacts of weaker study designs. Afamelanotide is FDA approved for specific uses, while Melanotan II is not fda approved and treated as a research compound in the US. See each compound's full evidence breakdown for the underlying studies.