Buy Melanotan II UK

Melanotan II is supplied here strictly as a melanocortin reference standard for in-vitro laboratory research. It is not a licensed medicine in the UK, it is not supplied for human or veterinary use, and no therapeutic or cosmetic claim is made for it anywhere on this site. Within that framing, what a research buyer needs is documentation and consistent handling: every order ships with a batch-specific Certificate of Analysis recording the measured purity and identity data for that production lot, with recent certificates published in our on-site COA library. Vials are handled cold-chain through to dispatch and ship as pre-mixed solutions. Orders confirmed before the daily cut-off leave a UK facility the same working day on tracked next-working-day delivery. Larger or recurring requirements are handled through our trade desk.

Melanotan II (MT-II) is a synthetic cyclic heptapeptide analogue of α-melanocyte-stimulating hormone (α-MSH), developed for controlled laboratory investigation of the melanocortin signalling system. Its sequence — Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂ — incorporates a norleucine substitution, a D-phenylalanine substitution and a lactam bridge that cyclises the molecule. Together these confer markedly greater stability and resistance to enzymatic degradation than the native linear hormone, which is what makes it a workable reference compound under laboratory conditions.

In biochemical and cellular systems MT-II acts as a broad, non-selective agonist across the melanocortin receptor family — MC1R, MC3R, MC4R and MC5R — with negligible activity at MC2R. That wide receptor coverage is precisely why it functions as a foundational tool: it provides the unselective baseline against which more receptor-selective analogues are characterised, in work on melanocortin-receptor binding, G-protein-coupled cAMP signalling and downstream transcriptional responses. Reported responses vary with receptor subtype, concentration, exposure time, cell model and study design.

Nothing on this page describes dosing, administration, reconstitution for use, or any application in humans or animals, and no therapeutic claim is made.

The position in the UK is unambiguous and worth stating plainly. The MHRA has repeatedly warned that products containing Melanotan sold for human use — typically marketed for tanning — are unlicensed, are unlawful to supply for that purpose, and are of unknown safety and quality when obtained through those channels. It has acted against suppliers marketing them that way. Melanotan II holds no UK marketing authorisation.

Material supplied here sits outside that entirely: it is sold as a laboratory reference compound for in-vitro research, labelled for that use, and documented accordingly. Purchasers must be 18 or over, must be acquiring it for genuine laboratory research, and must not use it in humans or animals. If you are looking for a product for personal or cosmetic use, this is not one, and we will not supply it on that basis.

For researchers who need the receptor-selective comparator rather than the broad-spectrum agonist, [PT-141](/buy-pt-141-uk) is the closely related MC4R-selective analogue, and we supply both with matching documentation.