
PT-141 (Bremelanotide) — 10mg
REGULATORY NOTICE
These products are laboratory materials supplied for research use only. They are not drugs, natural health products, or food.
They have not been reviewed or authorized by Health Canada for any use in humans or animals, and nothing on this site should be read as a claim that any product treats, prevents or cures any condition.
Not for human or veterinary use.
PT-141, also known as bremelanotide, is a cyclic analog of the melanocortin peptide Melanotan II, developed as a non-selective agonist at melanocortin receptors with particular activity at MC4R and MC1R. The lactam bridge between the Asp and Lys residues constrains the peptide into its bioactive conformation. It is supplied as a lyophilized powder and ships from Ontario, Canada.
QUICK SPECS
Form: Lyophilized peptide
Net per vial: 10 mg
Purity: ≥99% (HPLC verified)
Identity: MS-verified (per COA)
Storage: 2–8°C short-term, -20°C long-term, protect from light and moisture
Reconstitution: Use bacteriostatic water (sold separately)
IDENTITY BASICS
Sequence: Ac-Nle-cyclo(Asp-His-D-Phe-Arg-Trp-Lys)-OH (cyclic heptapeptide)
Molecular Formula: C₅₀H₆₈N₁₄O₁₀
Molecular Weight: 1025.18 g/mol
CAS Number: 189691-06-3
Common Synonyms: Bremelanotide, PT-141
WHY CHOOSE DURHAM PEPTIDES?
independently lab-tested with verifiable COA keys
Same-day shipping across Canada (orders before 5:00 PM EST)
Free shipping on orders over $200 CAD
Secure payment via Interac e-Transfer, credit/debit, or Crypto
Domestic Canadian supplier — ships from within Canada with no customs delays
WHAT IS PT-141?
PT-141 (bremelanotide) is a cyclic heptapeptide melanocortin receptor agonist, structurally a metabolite-derived analog of Melanotan II with its activity concentrated at the MC3R and MC4R subtypes.
WHAT IS THIS VIAL RECONSTITUTED WITH?
Bacteriostatic water, which is sold separately in our catalogue. The lyophilized powder is stable as shipped; once in solution its usable life shortens considerably, which is why it ships dry.
HOW SHOULD IT BE STORED?
Sealed and lyophilized, store at 2–8°C away from light; for long-term storage, −20°C is better. After reconstitution keep it refrigerated at 2–8°C and use it within an appropriate research timeframe — a peptide in solution has a materially shorter usable life than sealed lyophilized material.
IS THE COA VERIFIABLE?
Yes. Every batch is independently lab-tested with a unique report key you can confirm independently — see our guide on how to verify a lab report key.
HOW FAST DOES IT SHIP IN CANADA?
Orders placed and paid before 5:00 PM EST ship the same business day via Canada Post Xpresspost with full tracking. Shipping is domestic from within Canada, so there are no customs delays or border holds.
For laboratory research use only.
Not for human or veterinary use.
Not intended for diagnosis, treatment, cure, or prevention of any disease.
Use only in controlled laboratory settings by qualified personnel following appropriate safety procedures.
Volume discounts apply to your whole order, not to a single item. Enter the code at checkout.
Spend $200 or more — 10% off with code VOLUME10
Spend $500 or more — 15% off with code VOLUME15
Spend $1,000 or more — 20% off with code VOLUME20
Spend $2,000 or more — 25% off with code VOLUME25
The thresholds are worth more than they look. A $499 order costs you $449. Add one more $20 vial to reach $500 and you pay $425 — more product, $24 less. Free shipping over $200.
Ordering at volume? The full catalogue is available at wholesale pricing through a five-tier programme.
Minimum 10 units per product, any mix of products in one order
Accounts open at $2,000 per order
Tiers are set on 12-month volume and move up automatically
Canadian stock, same-day dispatch, shipping included
Apply at durhampeptides.ca/wholesale and we come back within one business day. Single vials and multi-packs on this page are available to everyone at the prices shown — no account needed.

















































