PT-141 (Bremelanotide) Research Peptide
PT-141, also called bremelanotide, is a synthetic peptide of seven amino acids, six of which form a ring.
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Research Use Only · Not for human or veterinary consumption.
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Certificates of Analysis
Every batch is tested by an independent laboratory before release.
Verify Batch. Lot-level COA, Batch DF/PT1/062026. Check the batch number printed on your vial against the certificate below, which reports the tests run on it.
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What is PT-141 (Bremelanotide)?
PT-141, also called bremelanotide, is a synthetic peptide of seven amino acids, six of which form a ring. It was made from Melanotan II, itself a version of the natural hormone alpha-MSH, by changing one chemical group at the end of the ring. It acts at melanocortin receptors, a family of receptors found in the brain and elsewhere in the body. Research on it falls into two areas: how it acts on those receptors in animals, and a completed program of human clinical trials in premenopausal women.
Product information reviewed by Dr. Martina Rossi, PhD
Scientific Contributor and Reviewer · Reviewed
PT-141 (Bremelanotide) Research & Reference
What PT-141 (Bremelanotide) does in published studies, and how to work with it in the laboratory, are covered in full on two dedicated pages rather than summarised here, so neither the evidence nor the handling detail is cut short.
Technical Specs
Labeled quantity is net peptide content, not gross salt weight.
PT-141 (Bremelanotide) Batch Results
Batch DF/PT1/062026
- Laboratory
- Kovera Labs
- Certified
- August 13, 2026
- Sample
- 10 mg vial
- Report
- KVR-2026-429E5B
An independent laboratory, Kovera Labs, tested a sample from this batch. These are the results on its certificate.
Purity
Pass99.427%
RP-HPLC, C18 column, 214 nm
Identity
PassConfirmed
LC-MS
Purity is an HPLC figure: the main peak’s share of everything the detector recorded at one wavelength. It’s not a weight. What a purity figure counts →
Check it with the lab. Kovera Labs’ verification page looks a certificate up by its report number. Product, batch, date and results should match this page.
Chromatogram
RP-HPLC · C18 · DAD 214 nm
Frequently Asked Questions
Is PT-141 (Bremelanotide) third-party tested for purity?+−
Yes. Every batch of PT-141 (Bremelanotide) is tested by an independent third-party laboratory using HPLC and MS-UPLC, confirming purity and mass identity before the batch is released. Pure Peptides does not test its own material.
Can I see the Certificate of Analysis before buying?+−
Yes. The Certificate of Analysis for the batch currently in stock can be viewed and downloaded directly on this page, before you place an order. Each certificate states the batch number, the measured purity, and the date of analysis, and can be verified independently with the issuing laboratory using the report number it carries.
What does "Research Use Only" mean?+−
It means PT-141 (Bremelanotide) is supplied for in-vitro laboratory research and for no other purpose, and must not be administered to humans or animals. PT-141's regulatory status differs from most compounds in this catalog: bremelanotide is the active ingredient of a prescription medicine sold under another name. The material sold by Pure Peptides is a research-grade preparation, supplied strictly for in vitro and non-clinical laboratory research; it is not that medicine and holds no marketing authorisation.
How is PT-141 (Bremelanotide) shipped and stored?+−
PT-141 (Bremelanotide) ships from US stock with cold-chain packaging and full tracking; orders placed before noon EST on business days are typically dispatched the same business day. On arrival, store the lyophilized powder at -20°C or below, dry and protected from light.
Compare PT-141 (Bremelanotide)
Side-by-side pages that tell PT-141 (Bremelanotide) apart from other compounds: how the two relate, which molecule the published evidence used, and whether they have been compared directly.
Melanocortin & Endocrine Research
Related Compounds
>99%
>99%
>99%
>99%From the blog
Background and context on this compound.
Reviewed for scientific accuracy
Dr. Martina Rossi, PhD
PhD, Université Grenoble Alpes · Scientific Contributor and Reviewer
Dr. Rossi's doctoral research at Université Grenoble Alpes examined the vascular functions of bone morphogenetic proteins. Her peer-reviewed work spans cell and molecular biology, vascular biology, and gene therapy, in journals including Cardiovascular Research, Scientific Reports, and Brain Sciences. She reviews Pure Peptides' product, reference, and research pages for scientific accuracy against the sources they cite.