PT 141 PT-141 (Bremelanotide) Research Peptide · 10mg
PT-141 is a synthetic cyclic melanocortin receptor agonist derived from α-MSH. Investigations cover MC3R/MC4R activation, hypothalamic signaling, and neurobehavioral pathways.
Purity >99%Form Lyophilized PowderNo Endotoxins
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PT 141 FAQ
Where is PT-141 for sale online?
You can buy PT-141, also known as bremelanotide, from Blank Peptides in 10mg vials made in our cGMP labs in the USA. Every vial carries a lot-matched certificate of analysis you can read before ordering. Research material requires no prescription from us, and processing time is within 1 business day.
What is PT-141?
PT-141 is a cyclic heptapeptide and a melanocortin receptor agonist, derived from the same alpha-MSH family as melanotan II but with different receptor selectivity, favouring MC3R and MC4R. Its pharmacology has been characterised in receptor binding studies and in central nervous system signalling research in animal models.
What purity is your PT-141, and is it third-party tested?
Greater than 99%, verified twice. Our lab runs HPLC and mass spectrometry on each production lot, and an independent sample goes to Freedom Diagnostics or Horizon Analytical for confirmation. Bacterial endotoxin testing is performed on every batch. The COA published here matches the lot number on your vial.
How much bacteriostatic water for PT-141 10mg?
1mL, giving 10mg/mL, in line with our standard 1mL per 10mg ratio. Let the water run down the inside wall of the vial and swirl gently until the cake dissolves. Cyclic peptides can take slightly longer to go into solution than linear ones, so allow a minute before troubleshooting.
How should PT-141 be stored?
Lyophilized vials at -20C, sealed, away from light and moisture. Ambient shipping temperatures do not harm freeze-dried powder. Once reconstituted, refrigerate at 2 to 8C and use the solution within a few weeks. Swab the stopper before each withdrawal and avoid repeated freeze-thaw cycling on mixed vials.
PT-141 vs melanotan II: what is the difference?
Receptor selectivity. Melanotan II is a broad melanocortin agonist with strong MC1R activity, which is why pigmentation research uses it. PT-141 is a metabolite-derived analogue with a profile weighted toward MC3R and MC4R and much less MC1R activity. Different receptors, different research questions.
How quickly does PT-141 ship?
Processing time is within 1 business day, shipping domestically from inside the USA. Outer packaging is plain with no compound names visible, and tracking is emailed when the label prints. Multi-vial packs go out in a single box rather than as split shipments.
Is PT-141 the same as the prescription product?
No. Bremelanotide exists as an approved prescription medicine, but the material sold here is unapproved research grade compound for laboratory use, not a drug, supplement or veterinary product. It is not for human use in any form. Ordering confirms you are a qualified researcher working in a research setting.