PT-141 (also known as Bremelanotide) is a melanocortin agonist approved for certain forms of low sexual desire. This page covers what the published research does — and does not — establish about it in relation to libido and sexual health.
PT-141 is researched for Libido & sexual arousal, Sexual dysfunction studies — which is why it appears in discussions of libido and sexual health.
Research status: FDA-approved for a specific indication.
How PT-141 is thought to work
PT-141 (bremelanotide) is a melanocortin receptor agonist. Rather than acting on blood flow like vascular treatments, it works on nervous-system pathways involved in sexual arousal, and is FDA-approved for hypoactive sexual desire disorder in certain populations.
What it does not establish
Prescription medication. Can affect blood pressure; medical supervision advised.
Nothing on this page is a recommendation to use PT-141, and Selpho publishes no dosing, reconstitution or sourcing information. Read how we decide what goes in the library.
Other peptides researched for Libido
A hypothalamic peptide studied for its role in reproductive hormone signaling.
A synthetic form of GnRH used to stimulate pituitary hormone release.
Frequently asked questions
FDA-approved for a specific indication. Research relevant to this area covers libido & sexual arousal, sexual dysfunction studies. That is a description of where the research points, not evidence that it will work for you — and Selpho does not provide dosing or medical advice.
FDA-approved for a specific indication.
Prescription medication. Can affect blood pressure; medical supervision advised. Always speak to a licensed healthcare professional before considering any peptide.
It is FDA-approved (as bremelanotide) for premenopausal women with hypoactive sexual desire disorder. Other uses are off-label.
It acts centrally on arousal pathways via melanocortin receptors rather than on blood flow, so its mechanism differs from PDE5 inhibitors.
Is PT-141 right for your situation?
Describe your goals and the free Peptide Advisor will match them against the research — no signup, no sales pitch.
Ask the Advisor — freeThis page is for educational purposes only and is not medical advice, a diagnosis, or a recommendation to use any compound. It contains no dosing or purchase information. Always consult a licensed healthcare professional before considering any peptide.