Melanocortin agonist

PT-141

Research peptide · Lyophilized vial 10 mg · 99% HPLC purity

A centrally acting melanocortin agonist: a uniquely non-hormonal mechanism in sexual-function research.

Sexual health

A peptide agonist of the melanocortin receptors (MC3R and MC4R) that acts within the central nervous system rather than on the vascular system. This central, non-hormonal mechanism sets it apart from other pathways studied in sexual function. Bremelanotide (marketed as a drug under the brand Vyleesi) was approved by the FDA in 2019; however, the material offered here is supplied solely as a research reference material (RUO), not as an approved pharmaceutical product.

Research objectives
99% purity (HPLC)
Per-batch HPLC analysis · certificate published
Lyophilized vial for reconstitution
Refrigerate · protect from light
Ships via DHL or FedEx
Size (dose)
Quantity
$120
$120 each · 10 mg
Add 2 more and get 10% volume discount.
Sold for research use only (RUO). Not for human or veterinary use.

Benefits studied in research

  • Studied for its central action on the MC3R and MC4R melanocortin receptors.
  • Investigated for its role in the neural pathways associated with sexual desire.
  • In phase 3 trials (bremelanotide), studied for significantly increasing sexual desire scores versus placebo.
  • Investigated in neuroimaging studies for the modulation of the brain's processing of sexual stimuli via MC4R agonism.

Key data

Class
Melanocortin agonist
Targets
MC3R · MC4R (CNS)
Mechanism
Central, non-hormonal and non-vascular
Reference
Bremelanotide (Vyleesi) · here RUO only
Storage
−20 °C lyophilized · 4 °C reconstituted

Scientific backing

Peer-reviewed publications on the molecule. Research references, not indications for use.

Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials
Obstetrics & Gynecology · 2019 · Kingsberg SA, Clayton AH, Portman D, et al.
View publication
An effect on the subjective sexual response in premenopausal women with sexual arousal disorder by bremelanotide (PT-141)
Journal of Sexual Medicine · 2006 · Diamond LE, Earle DC, et al.
View publication

Reconstitution calculator

Adjust the values to plan your protocol. The vial's mg sync with the size you select above.

Syringe
10 mg/ml
10,000 mcg/ml
Concentration
5 U
In the syringe (U-100)
0.05 ml
Volume per dose
20
Doses per vial
0100 U

The link opens the calculator with these same values.

Calculation tool for laboratory planning (RUO). An insulin U-100 syringe has 100 units = 1 ml. Laboratory reference, not medical advice.

Frequently asked questions

It acts centrally on melanocortin receptors rather than on the vascular pathway. This is a distinct mechanism, studied in both men and women.

Bremelanotide (PT-141) was approved by the FDA in 2019 for hypoactive sexual desire disorder; here it is offered solely as research material (RUO).

Laboratory analysis

Certificate for this batch

Analyzed by Vanguard Laboratory · Olympia, Washington, EE. UU.
ISO/IEC 17025:2017 · A2LA 6377.01
>99.80%± 0.18%
Chromatographic purity (HPLC-UV/VIS)
TestResult
Chromatographic purity · HPLC-UV/VIS>99.80% ± 0.18%
Vial content · HPLC-UV/VIS10.15 mg (labeled 10 mg)
Endotoxins · LALConforms · <5 EU/mg
Sterility · USP <71>Conforms · no growth detected
Batch
LP02202016
Report date
Feb 20, 2026
Laboratory ID
V260202-26 · 002
Presentation
10 mg

Certificate for the batch current at the time of publication. If your vial shows a different batch, ask us for its certificate over WhatsApp. The laboratory states that it did not take part in sample selection and that results relate only to the portion tested. Endotoxin thresholds quoted in the report are the USP/FDA criteria of the method; our materials are for research use only (RUO), not for human or veterinary use. Accreditation verifiable in the public A2LA directory.

Reference protocol

Reference protocol

Doses, syringe units and cycle for this vial, precalculated for our formats.

Also in this line

Related products