Guide
Melanotan 2 in Canada: what's sold and how to check it
Melanotan 2 is sold in Canada as a research chemical for lab use. What that means, how long a reconstituted vial lasts, and how it differs from PT-141.
Published October 30, 2026
Yes. Melanotan 2 is sold in Canada as a research chemical for laboratory use, and that is the only form pepuro carries it in. It ships from within Canada, so nothing crosses a border between the supplier and your bench.
| Peptide | Vial sizes | From |
|---|---|---|
| Melanotan 2 | 10mg | $49.99 CAD |
| Melanotan 1 | 10mg | $59.99 CAD |
| PT-141 | 10mg | $49.99 CAD |
Free shipping across Canada. Every vial ships with a QR code linking to its own batch lab report. See all peptides
What melanotan 2 is
Melanotan 2, also written MT-2, is a synthetic cyclic heptapeptide. It is a shortened, cyclised analog of alpha-melanocyte-stimulating hormone: the natural sequence trimmed to seven residues and closed into a ring, which makes it harder for peptidases to attack than the linear form. Melanotan 1 is the linear 13-residue analog of the same hormone, and PT-141 is the metabolite that forms when melanotan 2's terminal amide becomes a carboxylic acid.
| Melanotan 2 | |
|---|---|
| Other name | MT-2 |
| Structure | Cyclic, 7 residues |
| Formula | C50H69N15O9 |
| Molecular weight | 1024.18 g/mol |
| CAS | 121062-08-6 |
| Vial we stock | 10 mg |
Melanotan 1 vs melanotan 2 vs PT-141 sets all three side by side, and the PT-141 page covers the metabolite on its own.
Is melanotan 2 available in Canada?
It is available the same way any research peptide is: bought and sold as a research chemical intended for laboratory work, not as a drug or a supplement. Nothing about a research vial makes it a medicine, and a supplier that markets it as one is describing a product it cannot legally sell. Are research peptides legal in Canada covers where that line sits. This page is general information, not legal advice.
The practical difference between a domestic supplier and an import is the border. A vial bought in Canada ships inside the country, with no customs hold and no import fees at the door. Ordering the same material from the United States adds both, and a parcel held at the border can sit for weeks. Buying research peptides in Canada works through the domestic side, and BPC-157 in Canada shows the same picture for a different molecule.
Does melanotan 2 need to be refrigerated?
Not while it is the dry powder. Melanotan 2 ships lyophilized, which is exactly why a vial can sit in a warm mail truck and arrive chemically intact. Room temperature in transit is normal and says nothing about the material.
Storage depends on which form the vial is in:
| Form | Where it lives |
|---|---|
| Lyophilized powder, long term | Freezer, around -20°C |
| Lyophilized powder, a few weeks | Fridge, or a cool dark shelf |
| Reconstituted solution | Fridge, 2 to 8°C |
Once water is in the vial, the rules tighten. Keep the solution cold and off the door shelf, where the temperature swings every time the fridge opens. How to store research peptides has the reasoning behind all three rows, and the BPC-157 handling guide runs through the same routine for another vial.
How long is melanotan 2 good after reconstitution?
A reconstituted vial kept cold is generally good for a few weeks, not months. The clock starts the moment the water goes in, and three things decide how fast it runs:
- The solvent. Bacteriostatic water carries a small amount of preservative, which slows microbial growth and buys more time than plain sterile water. Bacteriostatic water vs. sterile water compares the two.
- The temperature. Cold, steady and dark is the goal; a warm bench shortens the window.
- Freeze-thaw cycles. Freezing and thawing the same solution over and over stresses the molecule. Split anything you plan to freeze into single-use aliquots first, so you thaw only the portion you need.
How to reconstitute a lyophilized peptide covers the mixing step, including why the water goes down the glass wall and never straight onto the powder.
How to check a melanotan 2 vial
Melanotan 2 and PT-141 sit less than one gram per mole apart, 1024.18 against 1025.16, which makes them the hardest pair in the catalog to separate by mass alone. Read the observed mass to two decimal places, then check the formula as well: melanotan 2 has one more nitrogen and one fewer oxygen than PT-141. A report for the vial should show:
- an observed mass near 1024.18
- purity at 99% or higher by HPLC
- a batch number that matches the vial
- a named, independent lab
How to read a peptide lab report walks through each line, including the checks that catch a report recycled from another batch. The same verification applies to the other melanocortin vials we stock, melanotan 1 and PT-141, and to every other molecule in the catalog.
Every melanotan 2 vial from pepuro ships free, from our Calgary, Toronto and Vancouver distribution centers, the same business day your e-Transfer clears, with a QR code on the vial that opens its independent, third-party lab report.
For research use only. Not for human or animal consumption.
Frequently asked questions
Is melanotan 2 available in Canada?
+
Yes, as a research chemical sold for laboratory use. Canadian suppliers ship it domestically, so there is no border to clear and no customs hold, and it is not sold as a medicine by those suppliers.
Does melanotan 2 need to be refrigerated?
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Not while it is the dry powder, which is stable at room temperature in transit and for a few weeks on a cool, dark shelf. Once reconstituted, keep it in the fridge at 2 to 8°C, away from the door shelf where the temperature swings.
How long is melanotan 2 good after reconstitution?
+
A few weeks when kept cold, not indefinitely. Bacteriostatic water gives a longer window than plain sterile water, and repeated freeze-thaw cycles shorten it further, so split anything you plan to freeze into single-use aliquots first.
How do I tell melanotan 2 from PT-141 on a lab report?
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By mass and formula together. Melanotan 2 is 1024.18 g/mol and PT-141 is 1025.16, which is too close to call on mass alone, so read the observed mass to two decimal places and check the formula as well. Melanotan 2 has one more nitrogen and one fewer oxygen.
Is melanotan 2 the same as melanotan 1?
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No. Melanotan 1 is a linear 13-residue analog of alpha-MSH at 1646.85 g/mol. Melanotan 2 is shorter, cyclic, and built from seven residues at 1024.18 g/mol, which makes it the more peptidase-resistant of the two.
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