PT-141 (bremelanotide) is a cyclic melanocortin-receptor agonist. It is also the active ingredient in an FDA-approved medication (Vyleesi); this product is supplied strictly for research use only, not as that drug.
| Full name | Bremelanotide (PT-141) |
| Structure | Ac-Nle-cyclo(Asp-His-D-Phe-Arg-Trp-Lys)-OH |
| Molecular weight | 1025.2 g/mol |
| CAS number | 189691-06-3 |
| Regulatory note | Active ingredient of an approved drug (Vyleesi); sold here RUO only |
| Purity | ≥99% by HPLC — see lot COA* |
| Physical form | Lyophilized powder |
| Reconstitution | Bacteriostatic water (see calculator) |
| Storage | −20°C desiccated; reconstituted 2–8°C |
PT-141 is a cyclic melanocortin-receptor agonist studied in laboratory models of melanocortin signaling. It is the active ingredient in an FDA-approved medication; Git Peptides supplies it for research use only.
Published preclinical studies have examined PT-141 in the context of:
These represent areas of active laboratory investigation. Findings from animal and cell-culture models do not establish safety or efficacy in humans, and PT-141 is not an approved product for any human use.
Supplied as a lyophilized powder, PT-141 is stored at −20°C when kept desiccated and protected from light. Once reconstituted with bacteriostatic water, it should be kept at 2–8°C and used within a research-appropriate timeframe. See the reconstitution calculator for concentration and draw-volume math, and the handling & storage guide for shelf-life sourcing (USP <797>).
→ Read the full PT-141 research overview in the research library
Yes. Every lot is analyzed by an independent third-party laboratory using HPLC for purity and mass spectrometry for identity confirmation. The Certificate of Analysis for your specific lot is published and available before purchase.
Store the lyophilized powder at −20°C, desiccated and away from light, where it is stable long-term. After reconstitution with bacteriostatic water, keep refrigerated at 2–8°C and use within a research-appropriate window.
PT-141 is sold exclusively for laboratory and scientific research use. It is not a drug, dietary supplement, or food, and it is not intended for human or veterinary use, consumption, or administration of any kind.
Orders are processed and shipped domestically within the United States, typically arriving in 2–4 business days. Compounds are packaged to protect the lyophilized powder in transit.