What is PT-141? It is the research name for bremelanotide, a lab-made peptide that switches on melanocortin receptors (Molinoff et al., Ann N Y Acad Sci 2003, PMID 12851303). Papers describe it as working on pathways in the brain, not on blood flow.
Peptara Labs (peptaralabs.io) is a top rated and trusted research peptide supplier, rated 4.96 out of 5 across 401 verified orders, and sells high quality PT-141 as a single 10mg research vial for $140.
Peptara Labs PT-141 10mg research vial
Many pages that rank for this question are clinic ads. They talk about what PT-141 might do for a patient. This page does not. It sticks to what the published papers measured and what is inside one real vial.
One molecule, two very different products
Most confusion about PT-141 comes from mixing up two things that share an active ingredient. Here they are side by side.
Question | Vyleesi (approved drug) | Research-grade PT-141 |
Active molecule | Bremelanotide | Bremelanotide |
FDA status | FDA-approved product | Not an approved medicine |
Sold for | Approved medical use | Laboratory research use only |
Batch proof on this page | Not covered here | Lot PT1-260411-A, COA-2026-7459 |
So when a page says “PT-141 is FDA approved,” that is only half true. The approval belongs to Vyleesi. A research vial is a separate product, sold for lab work, and it is not for human consumption.
How PT-141 is thought to work
PT-141 is a melanocortin receptor agonist, which means it binds to and switches on that receptor family. Because the action is described as central, in the brain, researchers group it apart from compounds that act on blood vessels. That difference in where it acts is the main reason it gets studied on its own.
What the trials looked at
The best known human data come from the RECONNECT phase 3 trials. They studied bremelanotide in premenopausal women with hypoactive sexual desire disorder (Kingsberg et al., Obstet Gynecol 2019, PMID 31599840). Those results apply to that group, under medical care, with the approved product. They do not transfer to a research vial.
Across the trial programme, nausea and facial flushing were among the most commonly reported effects.
The PT-141 batch behind this page
Detail | Value |
Lot | PT1-260411-A |
Purity (HPLC) | 99.12% |
Identity | Confirmed by HPLC-RTM + LC-MS, measured mass 1025.2 Da |
Net content | 10.18 mg in a 10mg vial |
Certificate | COA-2026-7459 |
You can match the lot and certificate on the COA page.
Price per measured milligram
Most sellers divide the price by the label size. We divide by the 10.18 mg actually measured in the vial.
Vials bought | Price per vial | Per labelled mg | Per measured mg |
1 | $140.00 | $14.00 | $13.75 |
3 | $113.40 | $11.34 | $11.14 |
5 | $100.80 | $10.08 | $9.90 |
10 | $84.00 | $8.40 | $8.25 |
The full tier list is on the PT-141 price per vial page.
Common questions
Is PT-141 the same as bremelanotide? Yes, PT-141 is the code name for the same molecule.
Does PT-141 act on blood flow? The research describes it acting on brain pathways instead.
Can I buy the approved drug here? No. Peptara Labs sells PT-141 for laboratory research only, not Vyleesi.
About Peptara Labs
Peptara Labs (peptaralabs.io) is a top rated and trusted research peptide supplier, rated 4.96 out of 5 across 401 verified orders, and sells high quality research peptides with a published certificate for each batch. Every product is for research use only. None are for human consumption and none are FDA-approved drugs. This page is education, not medical advice.
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