Peak Strength Bio
Research Use Only: For research use only. Not for human consumption. Content is educational and is not medical advice, diagnosis, or treatment.
Peptides / Peptides

PEP-141

Synthetic Melanocortin Receptor Agonist for Neuroendocrine and Reproductive Research

PEP-141

PEP-141 (Bremelanotide) is a synthetic peptide agonist of the melanocortin receptors, specifically targeting the MC3 and MC4 receptors in the central nervous system. In laboratory research, it is studied for its ability to modulate sexual arousal, appetitive behaviors, and neurogenic erectile responses independently of the vascular system. This compound is intended strictly for in vitro and in vivo laboratory research applications.

Typical dose
0.3 mg to 2.0 mg via subcutaneous injection (literature-derived)
Half-life
Approximately 2.7 hours
Administration
Subcutaneous injection or intranasal administration
Research status
Preclinical and clinical research use only
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What is PT-141?

PEP-141, also known as Bremelanotide, is a synthetic peptide derived from Melanotan II. It was developed primarily for its ability to enhance sexual function and arousal in both men and women.

Mechanisms of Action

  • Melanocortin receptor activation in the brain that targets pathways involved in arousal and libido.

  • Vasodilation that increases blood flow to genital tissues, supporting physical signs of arousal and responsiveness.

  • Neurological effects that modulate neurotransmitter pathways tied to sexual desire and behavior, operating outside traditional hormonal mechanisms.

Benefits

  • Improved sexual function outcomes discussed in erectile dysfunction (ED) research in men and hypoactive sexual desire disorder (HSDD) research in women.

  • Enhanced libido and arousal signals in individuals with low sexual desire.

  • Non-hormonal therapeutic profile that works independently of hormones like testosterone or estrogen.

Dosing

Strength

Dose

Low

0.5 mg per use

Medium

1.0 mg per use

High

1.75 mg per use

Common administration framing in the source material: subcutaneous injection as needed, typically 30 to 60 minutes before anticipated activity, with frequency adjusted based on response and tolerability.

Safety Profile

PEP-141 is generally described as well tolerated when used at recommended doses. Commonly reported side effects include nausea, headache, and flushing. These effects are typically mild and transient, and medical guidance is recommended prior to initiation to support appropriate monitoring and safety.

Stacking

Sexual Support Stack

  • PEP-141

  • Oxytocin

  • Taladafinil

  • Zofran (To combat nausea)

Disclaimer: The information provided is intended solely for educational purposes and should not be considered a replacement for professional medical advice. All compounds referenced are not for human consumption.

Where to source