Amino Acid & Peptide · Compound

PT-141 (Bremelanotide)

Provisional Strong Scoreamino_acid

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Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

PT-141 (Bremelanotide) is a synthetic peptide that activates melanocortin-4 receptors in the hypothalamus to enhance sexual arousal and desire. This FDA-approved medication works through central nervous system pathways rather than vascular mechanisms.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryAmino Acid & Peptide

GroupCompound

Public Score StatusProvisional Strong

Primary KeywordPT-141 benefits

PT-141 (Bremelanotide) — botanical close-up

Reported Benefits (Provisional)

Enhances sexual arousal and desire by activating melanocortin receptors in the brain, leading to increased libido. - May improve erectile function in men by promoting nitric oxide release and vascular dilation. - Increases sexual satisfaction and frequency of intimacy, with studies showing up to 50% improvement in responsiveness. - Supports healthy sexual function in women, especially those with hypoactive sexual desire disorder (HSDD). - Reduces sexual performance anxiety by balancing stress-related neurotransmitters. - Stimulates dopamine pathways, elevating mood and pleasure associated with intimacy. - Offers rapid onset of action, with effects often felt within 30-60 minutes. - Can help restore intimacy and confidence in relationships by addressing both psychological and physiological barriers.

Origin & History

Natural habitat

PT-141, also known as Bremelanotide, is a synthetic peptide derived from the melanocortin receptor agonist family. It is produced through chemical synthesis and is primarily used for its potential effects on sexual arousal.

“Developed in the early 2000s, PT-141 was initially researched for tanning effects before its sexual arousal properties were discovered.”Traditional Medicine

Research Narrative (Provisional)

PT-141 has been studied in clinical trials for its effects on sexual arousal and erectile dysfunction, showing promising results. Further studies are ongoing.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Composed of a sequence of amino acids. - Administered via subcutaneous injection. - Acts on melanocortin receptors in the brain.

Reported Mechanism (Provisional)

Mechanism of Action

PT-141 selectively binds to melanocortin-4 (MC4R) and melanocortin-1 (MC1R) receptors in the hypothalamic paraventricular nucleus. This binding activates cyclic adenosine monophosphate (cAMP) signaling pathways that modulate dopaminergic and noradrenergic neurotransmission. The resulting neural cascade enhances sexual motivation and arousal through central nervous system stimulation rather than peripheral vascular effects.

Clinical Narrative (Provisional)

Clinical trials included over 1,200 premenopausal women with hypoactive sexual desire disorder (HSDD). Phase 3 studies showed significant improvements in sexual desire scores on the Female Sexual Function Index, with 25% more participants achieving meaningful increases compared to placebo. Men's studies demonstrated improved erectile function scores by 2-3 points on the International Index of Erectile Function. Evidence quality is strong for women with HSDD, with FDA approval granted in 2019.

Also Known As

BremelanotideBMTMelanocortin receptor agonistSexual enhancement peptideLibido peptideArousal compound

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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