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PT-141, also known as bremelanotide, is a cyclic heptapeptide and a melanocortin receptor agonist. It was originally derived from the peptide Melanotan II through modification to isolate specific receptor activity. PT-141 acts primarily on the melanocortin-4 receptor (MC4R), which is expressed in the central nervous system and has been linked to sexual function pathways in preclinical research.
The research history of PT-141 is interesting because it represents a shift from studying melanocortin receptors purely in the context of pigmentation to understanding their broader role in neural signaling. Published studies have explored its mechanism of action in various animal models, particularly focusing on sexual behavior paradigms and CNS melanocortin pathways.
NXPeptides provides PT-141 as a lyophilized powder. Every batch is HPLC tested to confirm purity at 97% or higher, and a Certificate of Analysis is shipped with each order. We believe transparency about product quality is non-negotiable.
Store the lyophilized peptide at -20C for best long-term stability. Once you reconstitute it, keep it at 2-8C. Check our reconstitution guide and storage guide for step-by-step instructions.
All orders from NXPeptides ship free worldwide with discrete packaging and temperature-controlled delivery. Typical delivery time is 3 to 10 days. Anonymous checkout keeps your purchase private. Contact support@nxpeptides.com or visit our contact page if you need help. Track your shipment and review our quality assurance process anytime. Research use only.
This product is verified at ≥97% purity via reverse-phase HPLC analysis. A batch-specific Certificate of Analysis (COA) documenting exact purity percentage, mass spectrometry results, and appearance is included with your order.
Store the unopened lyophilized vial at -20°C in a dry environment. Once reconstituted, divide into single-use aliquots and store frozen at -20°C. Avoid repeated freeze-thaw cycles. Properly stored lyophilized powder has a shelf life of approximately 24 to 36 months.
Add bacteriostatic water or sterile water slowly along the vial wall. Do not spray directly onto the lyophilized powder. Gently swirl until completely dissolved. Do not vortex. See our full reconstitution guide for detailed instructions and solvent selection.
Orders ship within 24 hours. Domestic delivery takes 3 to 5 business days, international 5 to 10 business days. All shipments are temperature-controlled, tracked, and shipped in discrete packaging. You can track your order here.
No. This product is sold strictly for in-vitro laboratory research purposes only. It is not intended for human consumption, veterinary use, or any in-vivo application. By purchasing, you confirm you are 21+ and will use this product only for legitimate research.
Contact our support team at support@nxpeptides.com or use our contact form. We offer full replacements or refunds for any issues with purity, quantity, or shipping damage within 30 days of delivery.
Yes. We offer volume discounts for research institutions and repeat customers. Contact us with your quantity requirements and we will provide a custom quote within 24 hours.