Melanocortin signaling
Its agonism at the MC3R and MC4R receptors has been investigated as a central signaling pathway.
Purity ≥99%
Batch-tested
Pharmaceutical grade
Wellness
PT-141
10 mg lyophilized vial · Melanocortin agonist (Bremelanotide)
Signaling through melanocortin. PT-141 (bremelanotide) is a heptapeptide studied in preclinical research for its action on the melanocortin receptors and behavioral pathways.
- A melanocortin receptor (MC3R/MC4R) agonist
- Studied in models for sexual-behavior pathways
- Investigated in central nervous system signaling
- Purity ≥99% confirmed by HPLC and mass spectrometry
$299.000
COP
≈ $29.900 / mg
FREE shipping on orders over $250.000 COP
In stock−5% paying with crypto (CoinGate)
Quantity
- Bacteriostatic water not included (purchased separately for reconstitution in the laboratory).
- Requires refrigeration (2–8 °C, protected from light). We ship with cold chain.
- Every batch includes a Certificate of Analysis (COA) verifiable by QR.
- Commercial reference: Vyleesi® (bremelanotide) — we don’t sell the brand, nor is it a therapeutic equivalent.
You’ll need bacteriostatic waterTo reconstitute the lyophilized powder. 10 ml vial.
The science behind
What is PT-141?
PT-141, also known as bremelanotide, is a synthetic cyclic heptapeptide derived from Melanotan II. It acts as a melanocortin receptor agonist (primarily MC3R and MC4R), which are present in the central nervous system.
Unlike other molecules in its family, PT-141 does not act on the peripheral vascular system but through melanocortin signaling in the nervous system. Preclinical research has explored its relationship with behavioral and arousal pathways in animal models.
The TrüPeptides vial contains 10 mg of lyophilized PT-141 at ≥99% purity, validated by HPLC and mass spectrometry. It is distributed exclusively as a research-grade compound; it is not a medicine and is not intended for human consumption.
Preclinical research
PT-141 research areas
These are the lines of inquiry the scientific community has explored in preclinical models. None constitutes a therapeutic promise or an indication for use.
Behavioral pathways
Animal-model research has explored its relationship with behavioral and arousal pathways.
CNS signaling
Its action at the central nervous system level has been studied, unlike peripheral vascular pathways.
Melanocortin family
As a Melanotan II derivative, it has been investigated within the melanocortin peptide family.
Compliance note: the information above summarizes findings from preclinical and model research. It should not be interpreted as evidence that PT-141 diagnoses, treats, cures, or prevents any disease in humans.
Compound data sheet
Technical specifications
Verifiable data for the TrüPeptides PT-141 10 mg vial.
| Name | PT-141 (Bremelanotide) |
|---|---|
| Class | Cyclic heptapeptide · melanocortin agonist |
| Presentation | 10 mg vial, lyophilized powder |
| Purity | ≥ 99% |
| Analytical method | High-performance liquid chromatography (HPLC) + mass spectrometry (MS) |
| Solubility | Bacteriostatic water (not included) |
| Storage | Refrigerated at 2–8 °C, protected from light and humidity |
| Shelf life (lyophilized) | 24 months when stored as directed |
| Category | Wellness · Research-grade compound |
| Origin & quality control | Synthesis to GMP standards · batch-level Certificate of Analysis |
Safety first
Responsible use
Research-grade product. TrüPeptides PT-141 is intended for laboratory research use only. It is not a medicine, has not been evaluated by INVIMA, and is not approved to diagnose, treat, cure, or prevent any disease, nor for human consumption.
- Always consult a qualified healthcare professional before making any decision involving peptides.
- Handle the vial under proper laboratory conditions and maintain the cold chain (2–8 °C).
- Sold only to adults 18 and over. Keep out of reach of children and pets.
Laboratory tool
Reconstitution calculator
Work out the concentration and volume per measure when reconstituting your vial. A reference calculation for laboratory handling.
Concentration—
Volume per measure—
Units (U-100 syringe)—
Measures per vial—
Vial duration (weeks)—
A reference calculation for laboratory handling; it is not a dosing recommendation or advice for human use.
Radical transparency
Certificate of Analysis (COA) for every batch
Truth in every vial. Every batch of PT-141 we ship arrives with its own Certificate of Analysis, verifiable in seconds by scanning the QR code printed on the packaging.
The COA reports ≥99% purity confirmed by HPLC and validates the peptide identity and molecular weight by mass spectrometry (MS). So you are not buying a label — you are buying evidence.
How to read our COACertificate of Analysis
PT-141 10 mg · Batch PT1-2026-009
Batch originUS laboratory · third-party COA
CompoundPT-141
Purity (HPLC)99.0%
Identity (MS)Confirmed
AppearanceWhite lyophilized powder
Analysis date2026
Scan the QR code on your vial to view your batch's real certificate anytime.
Common questions
Questions about PT-141
PT-141 (bremelanotide) is a synthetic heptapeptide, a melanocortin receptor agonist. Preclinical studies have explored its role in melanocortin signaling and behavioral pathways in animal models. It is sold exclusively as a research-grade compound and is not a medicine.
No. The PT-141 10 mg vial ships lyophilized (as a powder), and bacteriostatic water is not included; it is purchased separately for reconstitution in the laboratory. The product requires refrigeration between 2 and 8 °C and protection from light.
Every batch from TruPeptides arrives with a Certificate of Analysis (COA) that you can verify via a QR code. The COA reports ≥99% purity confirmed by high-performance liquid chromatography (HPLC) and by mass spectrometry (MS), which validates the peptide's identity and molecular weight.
We ship with Coordinadora and Servientrega across Colombia, with estimated delivery of 24 to 48 hours in major cities such as Bogotá, Medellín, and Cali. Every shipment travels with gel packs to maintain the cold chain to your door. Orders over $250.000 COP ship free.
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