Where to Buy PT-141
Explore trusted research peptide suppliers selling PT-141 — with available third-party COAs, lab sources, and shipping data. No paid rankings.
About PT-141
PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide and a melanocortin receptor agonist with selectivity for MC4R. It is studied in research for its effects on central melanocortin signaling and sexual response endpoints.
PT-141 is sold worldwide as a research-use-only (RUO) compound. Purity and consistency vary between suppliers, which is why third-party lab testing (HPLC, mass spectrometry) and certificates of analysis matter when comparing options.
PT-141 Suppliers
Each card shows what the supplier actually publishes — lab data, COA source, and how long shipping takes.
Cernum Biosciences
UtherPT-141 vs Melanotan II
Both are melanocortin receptor agonists studied in research, but with different selectivity profiles:
- Receptor selectivity — PT-141 is more selective for MC4R; Melanotan II is non-selective and also targets MC1R
- Research focus — PT-141 is primarily studied for CNS-mediated sexual response; Melanotan II for melanogenesis and pigmentation endpoints
- Half-life — both are short-acting research peptides; protocols differ between the two
- Stability — both should be reconstituted with bacteriostatic water and stored refrigerated
Frequently Asked Questions
What is PT-141?
PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide and a melanocortin receptor agonist with selectivity for MC4R. It is studied in research for its effects on sexual response and central melanocortin signaling pathways.
Where can I buy PT-141?
PT-141 is sold by multiple research peptide suppliers worldwide. The suppliers above ship to the United States, Europe, the UK, and other regions, with available lab data and transparency signals.
What should I look for in a PT-141 supplier?
Look for third-party COAs (HPLC and mass spectrometry), endotoxin and heavy-metals testing, transparent batch documentation, and consistent community reviews. All suppliers above surface this data.
How is PT-141 different from Melanotan II?
Both are melanocortin receptor agonists, but PT-141 is more selective for MC4R and is studied for CNS-mediated effects, while Melanotan II also targets MC1R and is studied for melanogenesis. Their research-pharmacokinetic profiles and protocols differ.