PT-141 in Canada: availability, storage and identity

Yes. PT-141 is sold in Canada as a research chemical for laboratory use, and that is the only form pepuro carries it in. It ships domestically, so nothing crosses a border between the supplier and your bench.

What PT-141 is

PT-141 is a synthetic cyclic heptapeptide, also called bremelanotide. It is a metabolite of melanotan 2: swap that molecule's C-terminal amide for a carboxylic acid and you have PT-141. The single change adds a little under one gram per mole and shifts which melanocortin receptors it was built to bind.

The PT-141 and melanotan 2 we stock are both 10 mg lyophilized vials. Melanotan 1 vs melanotan 2 vs PT-141 sets all three melanocortin peptides side by side, melanotan 1 included.

Is PT-141 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 the sourcing picture is the same for every research chemical sold here, PT-141 or BPC-157.

Does PT-141 need to be refrigerated?

Not while it is still the dry powder. PT-141 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:

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.

How long does PT-141 last 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. If you need to keep it longer, split it into single-use aliquots before freezing, so you thaw only the portion you need.

The same few weeks apply to every reconstituted peptide in the catalog, and the gonadorelin handling guide covers the storage side for a different molecule. How to reconstitute a lyophilized peptide covers the mixing step itself.

How to check a PT-141 vial

PT-141 and melanotan 2 sit less than one gram per mole apart, 1025.16 against 1024.18, which makes them the hardest pair in the catalog to tell apart by mass alone. Read the observed mass to two decimal places, then check the formula too: PT-141 has one fewer nitrogen and one more oxygen. A report for the vial should show:

• an observed mass near 1025.16
• 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.

Every PT-141 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.