Melanotan I (afamelanotide) is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) studied in research into MC1R signalling and melanogenesis pathways in experimental models.
Melanotan 1 is afamelanotide (melanotan I, MT-1), a synthetic 13-amino-acid analogue of alpha-melanocyte-stimulating hormone in the melanocortin peptide family. Its sequence is Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2, with CAS number 75921-69-6. Kyrolabs supplies it as a lyophilised reference material for laboratory research use only; it is not a medicine and not for human or veterinary use.
Yes, afamelanotide is the established name for the same molecule sold here as Melanotan 1 (also melanotan I or MT-1). It is a linear analogue of alpha-MSH with formula C78H111N21O19 and CAS 75921-69-6. The material is supplied strictly as a characterised research reference compound for in-vitro and pre-clinical study, not for any human application.
No. Melanotan 1 (MT-1) is supplied only as a characterised laboratory research reference compound for in-vitro and pre-clinical study. It is not a medicine, and not a generic, alternative or equivalent to any licensed medicine. It is not supplied to treat, prevent or diagnose any condition and is not for human use. Anyone seeking treatment should consult a qualified healthcare professional.
They are different molecules that share the melanotan name. Melanotan 1 (afamelanotide) is a linear 13-residue analogue of alpha-MSH; Melanotan 2 is a shorter cyclic peptide with a different sequence, formula and CAS number. They are not interchangeable. Each is supplied separately as its own characterised research reference compound, for laboratory research use only.
Melanotan 1 is not a controlled drug under the Misuse of Drugs Act 1971, and Kyrolabs supplies it lawfully within the UK as a research chemical for laboratory use only. It is not authorised or supplied for human or veterinary consumption, cosmetic use or any in-body application. Purchasers are responsible for complying with all laws governing handling and use in their jurisdiction.
No. Melanotan 1 is supplied exclusively as a laboratory research chemical. It is not a medicine, supplement or cosmetic, and it is not intended, labelled or sold for human or veterinary consumption or for any application in or on the body. It is provided solely as a reference compound for non-clinical, in-vitro and pre-clinical research.
No. Kyrolabs supplies Melanotan 1 for laboratory research use only. It is not sold for, and must not be used for, cosmetic, in-body or any human application. We make no claim about any effect in people and do not provide guidance on consumer use. It is offered strictly as a research reference material; nothing on this page should be read as endorsing any non-laboratory use.
In the literature afamelanotide is studied as an agonist at melanocortin receptors, principally the melanocortin-1 receptor (MC1R), in laboratory and pre-clinical model systems. This is receptor-pathway research only and does not establish any benefit, effect or outcome in humans. The melanocortins category on this site groups related research peptides for further reading.
Melanotan 1 (afamelanotide) has molecular formula C78H111N21O19, a molecular weight of 1646.8 g/mol, CAS number 75921-69-6 and PubChem CID 16197727. Its sequence is Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2. These identifiers are verified against the expected mass on each batch Certificate of Analysis.
Not necessarily, which is why every Kyrolabs batch is released only after independent analytical testing. Purity is assessed by HPLC to a specification of at least 99%, and identity is confirmed against the expected mass and verified identifiers. A batch-specific Certificate of Analysis documents these results, so you receive a consistently characterised compound rather than an unverified material.
Melanotan 1 is supplied as a white to off-white lyophilised powder. For laboratory handling it is typically reconstituted with a suitable solvent such as bacteriostatic water. As a research material it is prepared and used only in a laboratory context; Kyrolabs provides no guidance on any in-body or human use, which is not a permitted application of this product.
Store the lyophilised solid at -20C, kept dry and protected from light, where it remains stable for laboratory use. Once reconstituted, hold the solution at 2-8C and protect it from light. Correct cold, dark storage helps preserve the integrity of the peptide as a research reference material for non-clinical work.
Yes. Each batch is supplied with a batch-specific Certificate of Analysis recording HPLC purity (specification at least 99%) and identity confirmed against the expected mass and verified identifiers (CAS 75921-69-6, PubChem CID 16197727). Current certificates are available in the Kyrolabs CoA library so the identity and purity of the research material can be confirmed.
Related
There are no reviews yet. Be the first to leave one.
KYRO supplies research-grade peptides for laboratory and in-vitro studies only. They are not medicines, hold no UK marketing authorisation, and are not presented to diagnose, treat, cure, prevent, or mitigate any condition. We do not provide therapeutic, dosing, or medical advice. By placing an order you confirm you are 18+ and acting as a qualified person in a research capacity.
Independent UK supplier of high-purity research peptides. Every batch HPLC-tested, cold-chain stored, and dispatched same-day from our Greater London facility.
© 2026 Kyrolabs Group Ltd.
