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Melanotan 2:
A Research
Overview

Omni Peptides · Updated 18 July 2026

Melanotan 2 is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (alpha-MSH), described as a non-selective agonist across several melanocortin receptor subtypes. It is used as a research tool for studying that receptor family and has no marketing authorisation. Supplied for research use only.

What Melanotan 2 is

Melanotan 2 is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (alpha-MSH), a naturally occurring melanocortin. In the literature it is described as a non-selective agonist — meaning it binds and activates several subtypes of the melanocortin receptor family rather than a single one.

It is supplied as a lyophilised powder for laboratory research.

Background

Melanotan 2 originated in academic melanocortin research as a tool for probing that receptor system. Its value in the laboratory comes precisely from its non-selectivity and potency at the receptor family, which make it a useful reference agonist in studies of melanocortin pharmacology.

Melanotan 2 has no marketing authorisation in the United Kingdom or elsewhere and has not been assessed for safety in humans. It is supplied strictly as a laboratory reference material, and no claim whatsoever is made regarding any effect in people. The regulatory reasons for that framing are set out in what 'research use only' means.

Areas of research interest

Laboratory research involving Melanotan 2 centres on the melanocortin receptor system:

These are areas of receptor pharmacology research, not effects established in humans.

Research context

Melanotan 2 is closely related to PT-141 (bremelanotide), which is both structurally related and a metabolite, and the two are frequently studied together in melanocortin research. The product listing gives the specification and batch certificate.

Frequently Asked Questions

What is Melanotan 2?

Melanotan 2 is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (alpha-MSH), described as a non-selective agonist at several melanocortin receptor subtypes. It is supplied as a lyophilised powder for laboratory research use only.

Is Melanotan 2 approved or licensed?

No. Melanotan 2 has no marketing authorisation in the UK or elsewhere and has not been assessed for safety in humans. It is supplied strictly as a laboratory reference material, and no claim is made regarding any effect in people.

How is Melanotan 2 related to PT-141?

PT-141 (bremelanotide) is structurally related to Melanotan 2 and is also a metabolite of it. The two are frequently studied together in melanocortin receptor research.

Related

Guide
What 'Research Use Only' Means in the UK
Guide
How Peptide Purity Is Tested
Product
Melanotan 2 10mg
Product
PT-141 10mg

Important: This article is general scientific and regulatory information. It is not medical, clinical or legal advice, and it is not guidance on using any compound in a person. All products supplied by Omni Peptides are for laboratory research use only and are not for human or veterinary consumption. Read our full Research Use Disclaimer.