PT-141 (Bremelanotide) is a melanocortin receptor agonist studied for sexual function and arousal mechanisms. With 27,100 monthly searches, it's one of the most in-demand research peptides.
PT-141 Pricing Comparison (March 2026)
| Vendor | Size | Price | Price/mg | Verified |
|---|---|---|---|---|
| Paradigm Peptides | 10mg | $45.00 | $4.50/mg | Finnrick A |
| Peptide Crafters | 10mg | $39.99 | $4.00/mg | Finnrick A |
| Swiss Chems | 10mg | $44.99 | $4.50/mg | - |
| Pure Rawz | 10mg | $36.99 | $3.70/mg | - |
| Peptide Sciences | 10mg | $65.00 | $6.50/mg | - |
| Core Peptides | 10mg | $44.99 | $4.50/mg | - |
Check [PT-141 compound page](/compounds/pt-141) for live pricing.
What Is PT-141?
PT-141 is a synthetic cyclic heptapeptide derived from Melanotan II. Unlike PDE5 inhibitors, PT-141 acts on melanocortin receptors in the central nervous system.
Key Research Areas
- •Sexual function: Studied for activation of MC3R and MC4R receptors
- •Mechanism: Acts centrally (brain) rather than peripherally (vascular)
- •Unique pathway: Different mechanism from other compounds studied for sexual function
Molecular Details
- •Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
- •Molecular Weight: 1,025.18 Da
- •Form: Lyophilized powder, typically sold in 10mg vials
What to Look For
PT-141 is a cyclic peptide, which makes synthesis more complex than linear peptides. Key quality considerations:
- •Cyclization verification: Mass spec should confirm the cyclic structure
- •Purity by HPLC: 98%+ expected for quality sources
- •Proper storage: Light-sensitive; store protected from light
Best Value
Pure Rawz at $3.70/mg offers the lowest price. For Finnrick-verified purity, Peptide Crafters at $4.00/mg is the best value. Both are solid choices depending on whether you prioritize price or independent verification.
For research use only. Not for human consumption.