What is Melanotan 2? Research and Australian supply

Melanotan 2 is a cyclic heptapeptide, meaning its structure contains seven amino-acid residues and a ring. ^[1] Peptides Collective lists a Melanotan 2 10mg vial from A$68. ^[2] The identifiers below describe the compound; the vial content describes the catalogue product. ^[1][2]

In the sequence, Nle means norleucine and lowercase f means D-phenylalanine. ^[1] The c[...] notation marks a lactam ring between aspartic acid and lysine, with an N-acetyl group and a C-terminal amide. ^[1] These details distinguish the named molecule from a generic “melanotan” label. ^[1][9]

The Melanotan 2 research records reviewed cover human studies of skin pigmentation and erectile responses, plus a review of compound discovery and development. ^[1][4] No individual cell or animal study is available in that source set, although the research summary mentions animal models. ^[1][4]

The human populations and research questions differ across these records. ^[10][12][5] A study of men with erectile dysfunction should be read in that population, with its own design and findings.

Peptides Collective groups Melanotan 2 in its skin research range. ^[2] The skin research peptide collection provides the related catalogue context; the study model and PMID remain the basis for reading the science.

Nausea and yawning were frequently reported in the Melanotan II study involving 20 men with psychogenic or organic erectile dysfunction, and the excerpt also records severe nausea (PMID 11035391). ^[5] The phase-I pilot in three healthy men reported mild nausea, with somnolence and fatigue reported in one participant (PMID 8637402). ^[11]

Two additional human case reports concern “melanotan”, without confirming whether the material was Melanotan I or Melanotan II. ^[9] Their findings need to keep that identity limit attached.

These case reports do not provide a comparison group or a population incidence estimate. ^[14][15] They should not be converted into a claim that Melanotan II caused melanoma, or that the reported frequency applies to other populations.

Melanotan II is listed in Schedule 4 of the Poisons Standard, June 2026 instrument F2026L00633, with an index cross-reference to alpha-melanocyte stimulating hormone. ^[6] Schedule 4 is the prescription-only category. ^[6] Peptides Collective's compound check is dated 29 September 2026. ^[6]

The supplied Melanotan II regulatory record confirms Schedule 4 but does not establish an Appendix D listing. ^[6] It therefore cannot support an Appendix D claim or a conclusion that possession and supply are unrestricted. The Australian peptide legal-status guide explains the broader scheduling framework.

The WADA 2026 Prohibited List took effect on 1 January 2026. ^[7] The dated compound check records the following qualified position verbatim:

Not named on the 2026 Prohibited List. Section S0 (non-approved substances) prohibits at all times any pharmacological substance not addressed elsewhere on the List and without current governmental approval for human therapeutic use; whether S0 applies depends on approval status, which was not verified here. ^[7]

Absence of the compound's name is not clearance under that broader rule. ^[7] Australian scheduling and WADA status answer different questions and need separate checks.

Laboratory handling of Melanotan 2 starts with matching the batch certificate, establishing the mass basis and selecting a suitable solvent and concentration. ^[16] Reconstitution of a lyophilised peptide dissolves the powder in a sterile solvent; the house guide records compound, batch, solvent, concentration and date on the label. ^[16]

Use the laboratory peptide reconstitution guide for the handling steps and calculations. Its example of 10mg in 2 mL gives 5 mg/mL, based on the stated peptide mass. ^[16] The guide distinguishes net peptide content from HPLC purity, so a purity percentage alone does not establish the mass available for that calculation. ^[16]

For general storage, Peptides Collective's house guidance recommends keeping sealed lyophilised material dry and dark at -20°C or colder for long-term storage. ^[17] Reconstituted working solutions are kept at 2 to 8°C, labelled and protected from light. ^[17] The peptide storage guide also distinguishes BAC Water solutions, kept refrigerated, from suitable plain-water or buffer aliquots that may be frozen. ^[17]

The underlying freezing discussion includes protein evidence; no Melanotan II stability study was found. ^[17] No compound-specific refrigerated shelf life is supplied, so the general handling guidance should not become a fixed expiry claim for a Melanotan 2 solution. ^[16][17]

You can request evidence for the batch you are ordering: Peptides Collective tests every batch before sale through an independent analytical laboratory, with purity by HPLC and identity by mass spectrometry. ^[3] The certificate is available on request using the compound name, strength and batch number. ^[3]

HPLC purity and mass-spectrometry identity are separate checks in our testing process. ^[3] Read the batch testing process for the method context, and use the certificate of analysis information when requesting the matching report. Ask for Melanotan 2, 10mg and the relevant batch number. ^[2][3]

Request the actual report before relying on a batch purity figure. Peptides Collective makes the certificate available on request, so you can check the report for the relevant batch. ^[3]

Peptides Collective dispatches Melanotan 2 orders from Perth twice daily Monday to Friday and once on Saturday, giving laboratories a defined dispatch schedule. ^[8] Orders ship once payment clears, and every order is packed with thermal insulation in plain outer packaging. ^[8]

The Australian shipping information sets out these terms. “Normally” is a delivery estimate, while twice-daily weekday dispatch describes the store's fulfilment schedule. ^[8] The free WA courier threshold applies to the order total. ^[8]

For laboratories ordering Melanotan 2, choose the Peptides Collective vial for independent batch testing and a certificate you can request for the relevant batch. ^[3] Tracked dispatch from Perth follows a twice-daily weekday schedule, with WA courier free on orders over A$150. ^[8] Order the Peptides Collective Melanotan 2 10mg vial and request its certificate using the compound, strength and batch number. ^[2][3]