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Sexual health

Melanotan I and II

Not authorized in Canada Evidence 1/4
Melanotan I and II peptide structure illustration (abstract amino-acid chain)
In short

"Tanning peptides" sold online. Health Canada lists melanotan I and II among seized unauthorized injectables. A regulated afamelanotide implant (Scenesse) for a rare light-sensitivity disease is a separate product.

Reviewed November 10, 2026 · 7 sources cited below

Also known as"tanning peptides"
Canada statusNot authorized in Canada
Human evidence Melanotan II: case reports of harm only; afamelanotide: RCTs in a rare disease
Last reviewedNovember 10, 2026

How strong is the human evidence?

Melanotan II: case reports of harm only; afamelanotide: RCTs in a rare disease. How we rate evidence

What is Melanotan I and II?

Melanotan I and II are synthetic analogs of alpha-melanocyte-stimulating hormone that darken the skin. Melanotan II has also been linked to sexual arousal effects.

Afamelanotide, an alpha-MSH analog, is the active ingredient of Scenesse, an implant for erythropoietic protoporphyria (EPP). Health Canada's Drug Product Database lists Scenesse as Approved (July 9, 2026).

What the research shows

  • Afamelanotide implants increased pain-free sun exposure in EPP patients in two RCTs (Langendonk et al., NEJM 2015).

What it doesn't show

  • No trial shows melanotan injections are a safe way to tan.

Common questions

Is melanotan legal in Canada?

No. Health Canada lists melanotan I and II among seized unauthorized injectable peptides.

Is melanotan 2 safe?

It has never completed approval trials; published case reports describe serious harms.

What is Scenesse?

An afamelanotide implant for the rare disease EPP, listed as approved in Health Canada's Drug Product Database.

Sources

  1. Health Canada — Peptides: Overview
  2. Health Canada advisory RA-81874 (Apr 9, 2026): Think twice before injecting peptides bought online
  3. Health Canada Drug Product Database (searched Nov 10, 2026)
  4. Langendonk JG et al. Afamelanotide for erythropoietic protoporphyria. NEJM 2015
  5. Peters B et al. Melanotan II: a possible cause of renal infarction. CEN Case Rep 2020
  6. Dreyer BA et al. Melanotan-induced priapism. BMJ Case Rep 2019
  7. Paurobally D et al. Melanotan-associated melanoma. Br J Dermatol 2011

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