$156.00
PT 141 peptide (bremelanotide) in a 10 mg lyophilised vial. A cyclic melanocortin receptor agonist for MC3R and MC4R research, third-party tested and dispatched same day from Australia. Research use only.
For laboratory research use only. Not for human consumption. Ships from Australia.
PT 141 peptide, known scientifically as bremelanotide, is a cyclic seven-amino-acid melanocortin receptor agonist. Vi Corpus supplies PT-141 as a 10 mg lyophilised vial for Australian laboratories researching the MC3 and MC4 receptors and central arousal pathways.
Key research features of PT 141 peptide
- Central mechanism. Unlike PDE5 inhibitors, PT-141 acts on melanocortin receptors in the brain rather than on blood flow.
- Clinical pedigree. Bremelanotide was approved by the US FDA in 2019 as Vyleesi, which gives researchers a large body of published data.
- Derived from Melanotan II. It is a metabolite of Melanotan II, yet it has far less effect on skin pigmentation.
- Stable cyclic structure. The lactam ring improves stability compared with linear peptides.
- Tested batches. Third-party results are available through our Lab Tests page.
Specifications
| Compound | PT-141 (bremelanotide) |
|---|---|
| Amount | 10 mg per vial |
| Form | Lyophilised (freeze-dried) powder |
| Molecular formula | C50H68N14O10 |
| Molar mass | approx. 1025.2 g/mol |
| Receptor targets | MC3R and MC4R |
| Reconstitution | Bacteriostatic water (sold separately) |
Research applications
Researchers use PT-141 to explore how the melanocortin system shapes motivation, appetite and sexual behaviour. For example, rodent studies have mapped its action in the hypothalamus, while human trials examined hypoactive sexual desire disorder. It is also a useful comparison compound when studying Melanotan II, because the two share a core structure. Our supply is intended only for these laboratory settings.
Storing PT 141 peptide vials
Store unopened vials at 2–8 °C, away from light and moisture. Once reconstituted with bacteriostatic water, keep the solution refrigerated and follow your lab’s stability protocol. In addition, avoid repeated freeze-thaw cycles, which can degrade cyclic peptides.
Frequently asked questions
Is PT 141 the same as bremelanotide?
Yes. PT-141 is the research code for bremelanotide, so both names describe the same molecule.
Is PT-141 the same as tadalafil?
No. Tadalafil is a PDE5 inhibitor, whereas PT-141 targets melanocortin receptors. Both are listed in our erectile performance research category.
Can PT-141 be used outside a lab?
It is not approved for therapeutic use in Australia, so Vi Corpus sells it for laboratory research only and not for human consumption.
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