
PT-141
10mg
$44.99
- SKU
- P41-10
- Purity
- ≥99%
- Form
- Lyophilized powder
- Storage
- Refrigerated after reconstitution
- Sequence
- Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH (Cyclic heptapeptide)
This product is sold strictly for in vitro research, laboratory use, and scientific investigation only. Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease.
Series
PT-141 — 10 mg
PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide melanocortin receptor agonist. It was developed from the tanning peptide Melanotan II and has been the subject of clinical trials examining melanocortin pathway activation.
Published Research
- Two Phase 3 RECONNECT trials (Clayton et al., 2019) examined bremelanotide in premenopausal women, demonstrating statistically significant improvements in Female Sexual Function Index desire domain scores and Female Sexual Distress Scale scores compared to placebo over 24 weeks.
- A Phase 1 study (Diamond et al., 2004) in healthy males documented that PT-141 at doses >7mg produced statistically significant erectile responses compared to placebo, with onset occurring in approximately 30 minutes.
- Research in the Journal of Urology (Safarinejad & Hosseini, 2008) examined PT-141 in men who were non-responsive to sildenafil, finding that 34% of treated subjects reported significantly better outcomes compared to 9% with placebo.
- A 52-week open-label extension study demonstrated a favorable long-term safety profile with sustained efficacy in treating hypoactive sexual desire disorder.
Mechanism of Action
PT-141 activates melanocortin receptors MC3R and MC4R in the central nervous system. Unlike PDE5 inhibitors that work peripherally, research suggests melanocortin agonists act through hypothalamic pathways involved in sexual response.
Key Citations
- Clayton AH, et al. Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials. Obstet Gynecol. 2019;134(5):899-908.PMID: PMC6819021
- Molinoff PB, et al. PT-141: a melanocortin agonist for the treatment of sexual dysfunction. Ann N Y Acad Sci. 2003;994:96-102.PMID: 12851303
- Diamond LE, et al. Double-blind, placebo-controlled evaluation of PT-141 in healthy males and patients with erectile dysfunction. Int J Impot Res. 2004;16(1):51-59.PMID: 14963471
This compound is part of the Elite Performance Stack
View Kit →Related Articles
Melanocortin Receptors Explained
A comprehensive overview of the melanocortin receptor system (MC1R through MC5R), alpha-MSH signaling, and the research context for PT-141 and Melanotan II in melanocortin pathway investigations.
What Are Research Peptides? A Scientific Overview
An educational introduction to research peptides — covering amino acid chains, solid-phase synthesis, lyophilization, purity standards, and how synthetic peptides are used in laboratory investigations.
Understanding Peptide Purity and Third-Party Testing
A detailed look at what peptide purity means, how HPLC and mass spectrometry are used to verify research compounds, and why purity standards matter in laboratory investigations.
Related Compounds — Elite Series

PT-141
10mg
$44.99
- SKU
- P41-10
- Purity
- ≥99%
- Form
- Lyophilized powder
- Storage
- Refrigerated after reconstitution
- Sequence
- Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH (Cyclic heptapeptide)
This product is sold strictly for in vitro research, laboratory use, and scientific investigation only. Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease.
