Melanocortin Receptor Research Peptide — Nasal Spray
Melanotan II is a synthetic cyclic peptide analogue derived from alpha-melanocyte–stimulating hormone (α-MSH). It is developed for controlled laboratory research involving melanocortin receptor signaling systems.
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Research Use Only
This product is intended strictly for laboratory research use within Canada. It is not approved by Health Canada for the diagnosis, treatment, cure, or prevention of any disease. Not for human or veterinary use.
By purchasing, you confirm the material will be used solely for lawful research purposes in accordance with applicable Canadian regulations.
Melanotan II is a synthetic cyclic peptide analogue derived from alpha-melanocyte–stimulating hormone (α-MSH). It is developed for controlled laboratory research involving melanocortin receptor signaling systems.
In scientific literature, Melanotan II is studied in experimental models examining melanocortin receptor interaction, neuroendocrine signaling pathways, and receptor-mediated regulatory mechanisms under in vitro and preclinical research conditions.
Melanotan II is a cyclic melanocortin receptor agonist evaluated in research focused on melanocortin pathway signaling and receptor interaction dynamics. Experimental studies examine its interaction within neuroendocrine regulatory systems and melanocortin-associated signaling frameworks under controlled laboratory conditions.
Research publications have explored its receptor-binding profile and pathway-level signaling characteristics within structured experimental environments.
History
Melanotan II originated from research into melanocortin receptor agonists derived from α-MSH analogues. Structural modifications led to the development of cyclic peptides designed to enhance receptor interaction properties for experimental study.
Subsequent investigations documented its receptor subtype interaction and signaling behavior in laboratory research models.
Key Research Areas
Laboratory investigations into Melanotan II have focused on melanocortin receptor activation models and neuroendocrine signaling pathways. Research frameworks evaluate receptor-mediated interaction, melanocortin pathway dynamics, and peptide-associated regulatory systems under controlled in vitro and preclinical conditions.
2 of the 4 areas below are addressed directly by a paper cited on this page.
Melanocortin receptor activation models
Addressed on this page by Eliason 2022, Yue 2023. Each is linked to its source record in the references below, so what was measured — and in what system — can be read rather than taken on trust.
Eliason, N.L. et al. (2022) — Melanocortin receptor agonist melanotan-II microinjected in the nucleus accumbens decreases appetitive and consumptive responding for food.
Yue, W.K. et al. (2023) — Targeting Melanocortin Receptors Using SNAr-Type Macrocyclization: A Doubly Orthogonal Route to Cyclic Peptide Conjugates.
Neuroendocrine signaling pathway studies
No paper cited on this page reports on neuroendocrine. This heading marks where Melanotan II Spray is discussed in the category rather than a question the cited literature answers, and it is worth knowing which of these areas has work behind it and which does not.
α-MSH analogue research frameworks
No paper cited on this page reports on analogue. This heading marks where Melanotan II Spray is discussed in the category rather than a question the cited literature answers, and it is worth knowing which of these areas has work behind it and which does not.
Receptor subtype interaction investigations
Addressed on this page by Eliason 2022, Yue 2023. Each is linked to its source record in the references below, so what was measured — and in what system — can be read rather than taken on trust.
Eliason, N.L. et al. (2022) — Melanocortin receptor agonist melanotan-II microinjected in the nucleus accumbens decreases appetitive and consumptive responding for food.
Yue, W.K. et al. (2023) — Targeting Melanocortin Receptors Using SNAr-Type Macrocyclization: A Doubly Orthogonal Route to Cyclic Peptide Conjugates.
The references section of this page cites 5 primary papers published between 2022 and 2024 — a limited but non-trivial record. Every citation is linked to its PubMed or DOI record so it can be read rather than taken on trust, and the summaries above describe what those papers report rather than what the compound is claimed to do.
Research compounds attract claims that outrun their evidence. Below are the ones most often encountered for Melanotan II Spray, set against what the papers cited on this page actually report. Where the record is thin or contested, that is stated rather than smoothed over.
Also called
Melanotan II Spray is also referred to as MT-2, MT2, melanotan 2.
Preclinical only
Melanotan II Spray is commonly described online in connection with increased libido and sexual function. In the research literature the same compound is filed under melanocortin receptor activation models, neuroendocrine signaling pathway studies and α-MSH analogue research frameworks.
The 5 papers cited on this page, published between 2022 and 2024 (1 in animal models) describe laboratory and animal work. None reports a controlled trial in humans. Findings in cell culture or in a rodent model describe what happened in that system; they do not establish that the same occurs in humans, and this compound is not approved for human use.
Nothing above is a statement of what this material does. It is a summary of what has been published and what has not. Eppix Labs supplies research materials only and provides no dosing, administration or protocol guidance.
Verification for Melanotan II Spray is per lot, not per product. The current 10mg lot MT2-CA-26F-10 returned 99.887% purity, 11.12 mg measured, 111.2% of the labelled 10 mg, assayed by Janoshik. Those figures are the laboratory's, published in full rather than reduced to a badge.
The lot code printed on the vial matches the code on the certificate for Melanotan II Spray. Matching the two is what confirms the unit in hand came from the batch that was tested — a certificate not tied to a lot code proves nothing about any particular unit.
Researchers who buy Melanotan II Spray in Canada through Eppix Labs receive the lot described by the certificate above: the code printed on the vial label is the code on the certificate, and both are searchable on the batch verification page.
Melanotan II Spray ships as a prepared solution rather than as lyophilized powder, so it is already past the point at which a powder would be reconstituted. That shortens handling but tightens storage: a compound in solution is less stable than the same compound dry, and refrigeration from arrival onward is the relevant control.
The stability window for a solution is shorter than the shelf life of a sealed lyophilized vial of the same compound. Records for laboratory work in this format should note the date the unit was opened, not only the date it was received.
Vials may appear empty on arrival. Lyophilized material collects at the base of the vial and is often not visible until the vial is inspected under direct light.
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Have questions about batch verification, documentation, or research specifications? Our team is available to assist with product and compliance inquiries.