PT-141 Research Hub — Bremelanotide Melanocortin Studies
PT-141 (bremelanotide) is a synthetic cyclic heptapeptide derived as a metabolite of Melanotan-II, with greater selectivity for the MC3R and MC4R melanocortin receptors. It is widely cited in central melanocortin pathway and behavioural-pharmacology research.
What this hub covers
PT-141 research articles
All research →PT-141 vs Kisspeptin-10 — Research Comparison (2026)
PT-141 vs kisspeptin-10 for sexual-response research: central melanocortin pathway vs upstream HPG-axis activation.
Read article →PT-141 Reconstitution & Storage — Research Guide (2026)
PT-141 reconstitution and storage guide: vial sizes, diluent volumes, U-100 syringe math, and stability windows for laboratory research.
Read article →PT-141 (Bremelanotide) Safety Profile
PT-141 safety profile: blood pressure effects, nausea, hyperpigmentation considerations, and monitoring protocols.
Read article →PT-141 (Bremelanotide) Research Overview
PT-141 (Bremelanotide): MC4R mechanism, hypothalamic sexual motivation signalling, FDA approval context, and comparison to peripheral PDE5 inhibitors in sexual function research.
Read article →PT-141 Benefits and Side Effects: A Research Guide
Published benefits, side effects, and Melanotan II comparisons for PT-141 (bremelanotide) — the only FDA-approved peptide for sexual desire.
Read article →Melanocortin Research Overview
The melanocortin system consists of five receptor subtypes (MC1R–MC5R), endogenous peptide ligands derived from proopiomelanocortin (POMC), and two endogenous antagonists (Agouti protein and Agouti-related protein, AgRP). POMC is a large...
Read article →Melanotan 2 vs PT-141: Melanocortin Receptor Research
Compare Melanotan 2 (MT-2) and PT-141 (bremelanotide) — two melanocortin-receptor agonists — across receptor selectivity, pigmentation effects, and published research.
Read article →PT-141 (Bremelanotide) Mechanism of Action
Pharmacology of the cyclic heptapeptide PT-141 (bremelanotide): MC4R / MC3R agonism, central sexual response circuits, and distinction from PDE5-inhibitor mechanisms.
Read article →PT-141 research FAQ
- What is PT-141?
- PT-141 (bremelanotide) is a synthetic cyclic heptapeptide that activates the melanocortin receptors, with relatively greater selectivity for MC3R and MC4R than non-selective analogs like MT-2.
- How does PT-141 differ from MT-2?
- PT-141 is derived as a linear metabolite of MT-2 and shows reduced activity at MC1R (pigmentation) and increased relative MC3R/MC4R selectivity, making it a distinct research tool for central melanocortin pathway studies.
- What receptors does PT-141 act on?
- PT-141 is an agonist at MC1R, MC3R, MC4R and MC5R, with the strongest research focus on MC3R/MC4R-mediated central pathways. See the PT-141 research overview for the receptor selectivity breakdown.
- How is PT-141 stored?
- Lyophilized PT-141 is stored at 2–8 °C protected from light. Reconstituted material should be refrigerated and used within the COA's documented window.
All content on this hub is provided strictly for laboratory research purposes. Compounds listed are not for human or veterinary consumption. See our research-use disclosure for full terms.