Home›Research›Compare›Alpha-MSH vs PT-141
Peptide ComparisonAlpha-MSH vs PT-141
Both are Reproductive & Hormonal peptides.
Alpha-MSH
Alpha-Melanocyte Stimulating Hormone
Half-life: ~3-5 minutes (plasma)
No providers listed yet
PT-141
Bremelanotide
Half-life: 2–3 hours
328 providers listed
PT-141 is FDA-approved, while Alpha-MSH is not evaluated — the clearest structural difference between them.
Alpha-MSH
Half-life
~3-5 minutes (plasma)
PT-141
Half-life
2–3 hours
| Your goal | Better option |
|---|---|
| Stronger clinical evidence | PT-141 |
| Further along in FDA review | PT-141 |
| Less frequent dosing (longer half-life) | PT-141 |
| More provider options (0 vs 328) | PT-141 |
Research summary only — not medical advice. Consult a qualified provider before making any decisions.
Alpha-MSH
PT-141
Alpha-MSH
Preclinical assessment of (177)Lu-DOTA-Pip-Nle-CycMSH(hex): In vivo evaluation and human dosimetry estimation.
Antrodia cinnamomea extract exhibits anti-melanogenic and anti-photoaging effects: potential for cosmetic and…
Depigmenting Effects of Vitex rotundifolia Cone Essential Oil in Melanocytes and Its Chemical Composition.
Hypothalamic orexigenic and anorexigenic neuropeptides in the rotenone model of Parkinson's disease.
+8 more
PT-141
Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials
Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications…
The neurobiology of bremelanotide for the treatment of hypoactive sexual desire disorder in premenopausal wom…
Bremelanotide: New Drug Approved for Treating Hypoactive Sexual Desire Disorder
+1 more
About Alpha-MSH
Melanocortin peptide; activates MC1R (pigmentation/anti-inflammatory), MC3R (energy balance), MC4R (appetite); suppresses NF-κB and pro-inflammatory cytokines
About PT-141
PT-141 is a synthetic analogue of alpha-melanocyte-stimulating hormone (α-MSH) that activates melanocortin receptors (MC3R and MC4R) in the central nervous system, particularly within the hypothalamus. Unlike peripherally acting agents, it modulates sexual arousal at the CNS level via dopaminergic pathways, independent of vascular mechanisms. Bremelanotide received FDA approval as Vyleesi for hypoactive sexual desire disorder in premenopausal women.
Information below reflects published research data only — not medical advice. Consult a qualified provider before use.
Alpha-MSH
No established clinical contraindications
PT-141
Source: FDA label
FDA prescribing information for bremelanotide identifies transient blood pressure elevation as the primary safety concern. Baseline cardiovascular assessment and BP monitoring are recommended.
PT-141
Oxytocin
Research suggests PT-141 and Oxytocin may produce complementary sexual health effects when combined. PT-141 activates central melanocortin receptors involved in arousal signaling, while oxytocin modulates bonding, reward, and peripheral reproductive pathways.
Antihypertensive medications
Research notes that PT-141 may influence cardiovascular hemodynamics via central melanocortin pathways. Combined use with antihypertensive medications may require monitoring. Consult your prescriber before combining.
Alpha-MSH
Not enough vendor pricing yet.
PT-141
Where to source these peptides
PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.
More Reproductive & Hormonal Comparisons
Browse all peptides →Educational research tools — not medical advice.
Cite this page
Data last updated October 26, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). Alpha-MSH vs PT-141 — Per-mg Price Comparison. Retrieved October 26, 2026, from https://peptidebase.io/peptides/compare/alpha-msh/pt-141