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Melanotan II Research Peptide: What It Is and What the Research Investigates

In short: Melanotan II is a synthetic cyclic peptide analogue of α-MSH, studied in pre-clinical models of melanocortin-receptor signalling and pigmentation biology. It is supplied strictly for laboratory research and is not approved for human use. For research buyers, the key purchasing criteria are verified purity (≥99% HPLC), confirmed identity (mass spectrometry) and batch traceability.

What is Melanotan II?

Melanotan II (MT-2) is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (α-MSH), developed to study melanocortin-receptor signalling. It acts as a non-selective agonist across multiple melanocortin receptors (MC1R, MC3R, MC4R and MC5R). It is a research compound only and is not a medicine — it is not approved by regulators for human, veterinary, cosmetic or therapeutic use.

What does the research investigate?

Published pre-clinical literature has examined Melanotan II in models of pigmentation pathways, melanocyte signalling, UV-response biology, appetite/metabolic signalling and neuroendocrine communication. Important: this research is largely in-vitro or in animals; findings in such models do not establish safety or efficacy in humans. Always read the primary sources directly.

Purity and quality: what research buyers should check

For reproducible research, compound quality is everything:

  • ≥99% purity by HPLC — confirm via the batch Certificate of Analysis.
  • Identity by mass spectrometry — confirms the correct molecular weight.
  • Batch numbering — traceability to a tested lot.

Vexar Lab supplies Melanotan II as a pack of 10 vials, ≥99% HPLC-verified, batch-numbered, with mass-spec confirmation.

Handling and storage

Follow standard lyophilised-peptide practice: store sealed vials appropriately, reconstitute with the diluent specified by your method, and record batch numbers in your lab notes.

Wholesale supply

Melanotan II is available wholesale: packs of 10 vials, £300 minimum order, bulk pricing on volume, £45 flat worldwide shipping, and optional custom labelling for resellers.

Frequently asked questions

Is Melanotan II approved for human use?

No. It is a research compound supplied for in-vitro laboratory research only and is not approved for human consumption or cosmetic use.

What receptors does it act on?

It is a non-selective melanocortin-receptor agonist (MC1R, MC3R, MC4R, MC5R) studied in pigmentation and signalling research.

How is it supplied?

As a pack of 10 vials, wholesale, with a £300 minimum order and £45 flat worldwide shipping.


Provided for research professionals. Melanotan II and all compounds referenced are intended strictly for in-vitro laboratory research and are not for human consumption. Verify all claims against primary literature and confirm local regulations before purchase.


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