PT-141
A melanocortin receptor agonist approved as Vyleesi for hypoactive sexual desire in women.
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✨ real molecule sketch
Spotted this on a label?
PT-141
That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.
Structure (cute edition)
✨ real molecule sketch
This peptide is a short chain of about 4 amino acids—think of it as a tiny protein necklace on your label.
INCI: PT-141 · ~4 amino acids in our simplified view
What brands say it does
PT-141 (bremelanotide) works centrally on melanocortin-4 receptors—not by blood flow like PDE5 drugs. FDA-approved as a nasal spray (Vyleesi). Research-grade PT-141 sold online is not the same as the prescription product.
Where you’ll find it
Prescription Vyleesi; research vendors sell unapproved versions.
Other names you might see
Bremelanotide
Vyleesi
Melanotan II derivative
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Educational only—not medical advice. We do not sell peptides. Unregulated research chemicals carry serious purity and legal risks.