How to store PT-141 (Bremelanotide)
Practical storage protocol for PT-141 (Bremelanotide): temperature, light, reconstitution timing, and shelf life in a research setting.
Lyophilised (freeze-dried) storage
Unreconstituted PT-141 (Bremelanotide), like most research peptides, is stable when stored in its original sealed vial at -20°C for long-term storage. For short-term use (under 3 months), refrigeration at 2-8°C is acceptable. The vial must be protected from direct light and moisture.
Peptify dispatches PT-141 (Bremelanotide) in temperature-tolerant packaging from the UK, usually arriving within 24-48 hours of dispatch.
After reconstitution
Once PT-141 (Bremelanotide) is reconstituted with bacteriostatic water (BAC water, 0.9% benzyl alcohol), the solution should be stored at 2-8°C (refrigerated) and used within 28 days. Bacteriostatic water's preservative system inhibits microbial growth for roughly four weeks after first puncture — significantly longer than sterile water, which must be used immediately.
Avoid freeze-thaw cycles. Never leave the vial at room temperature for extended periods, and keep it in its original rubber-stoppered vial to minimise contamination risk.
Shelf life and quality verification
Peptify publishes a batch-specific expiry date on every PT-141 (Bremelanotide) COA, alongside HPLC chromatogram data and mass spectrometry confirmation. The full Certificate of Analysis for your specific batch is downloadable from the product page.
Buy PT-141 (Bremelanotide) for research
99%+ HPLC-verified PT-141 (Bremelanotide) in stock. Every vial ships from the UK with a batch-specific Certificate of Analysis. Same-day dispatch on orders before 1pm.
Frequently asked questions
What is PT-141?
PT-141 acts on melanocortin receptors in the brain rather than the vascular system. It is researched for its effects on sexual function through CNS pathways.