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PT-141 · 10mg
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$879.84
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$527.90
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10 vials
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$351.94
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99% HPLC Purity
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99%+ HPLC Purity — Independently verified by accredited US laboratory -
Endotoxin-Screened — LAL tested, LPS-free, endotoxin report available
-
GMP-Certified Manufacturing — USA facility, ISO 9001:2015
-
Lyophilized for Stability — Shipped cold-packed, intact for reconstitution
Molecular Weight
Third Party Tested
APPLICATION
For Research Use only
Form
Lyophilized Powder
Storage
-20°C Long Term
Purity (HPLC)
99%+ Third Party Verified
Manufacture
USA / GMP
4.9 847 verified reviews
PT-141 · 10mg
Total Price
$879.84
Discounted Price
$527.90
Vials
10 vials
You Save
$351.94
40% OFF
Select Strength (mg)
99% HPLC Purity
Select Vials
Bulk pricing applied
📈 Upgrade to 10 vials and save an extra vs. buying 5 — nearly 3 free vials.
Select Purchase Option:
-
99%+ HPLC Purity —
Independently verified by accredited US laboratory
-
Endotoxin-Screened —
LAL tested, LPS-free, endotoxin report available
-
GMP-Certified Manufacturing —
USA facility, ISO 9001:2015
-
Lyophilized for Stability —
Shipped cold-packed, intact for reconstitution
Molecular Weight
Third Party Tested
APPLICATION
For Research Use only
Form
Lyophilized Powder
Storage
-20°C Long Term
Purity (HPLC)
99%+ Third Party Verified
Manufacture
USA / GMP
PT-141, scientifically referred to as Bremelanotide, is a synthetic peptide developed through extensive structural modification of the naturally occurring alpha-melanocyte-stimulating hormone (α-MSH). This peptide has gained considerable interest within laboratory environments due to its interaction with melanocortin receptors, most notably MC1R, MC3R, and MC4R. These receptors play essential roles in neuroendocrine regulation, melanocortin pathway mapping, immunomodulatory activity, and behavioral response modulation within controlled studies.
This PT-141 10mg lyophilized peptide format is commonly selected in laboratory settings due to its stability, purity potential, and compatibility with precise experimental design. Through the use of advanced manufacturing and purification protocols, research-grade PT-141 enables controlled observations essential for neurochemical, behavioral, and receptor-specific investigations.
This formulation is manufactured as a High Purity, LPS-free peptide, supporting research environments that require minimized interference from bacterial contaminants. As an Endotoxin-free peptide, PT-141 is suitable for sensitive in-vitro and analytical studies where endotoxin presence could compromise experimental integrity. Additionally, all batches are research peptides endotoxin tested, ensuring quality control standards aligned with rigorous laboratory research requirements.
This product is intended strictly for research and laboratory use only. Not for human or animal use.
PT-141 at a glance
| Molecular formula | C₅₀H₆₈N₁₄O₁₀ |
|---|---|
| Molecular weight | 1025.182 g/mol |
| CAS number | 189691-06-3 |
| PubChem CID | 9941379 |
| Form supplied | Lyophilized powder |
| Application | Research use only |
What is PT-141?
PT-141 is a synthetic melanocortin-related peptide used in laboratory research to study receptor binding interactions and downstream cellular signaling pathways. Research investigations may examine how melanocortin receptors respond to peptide ligands and how these interactions influence signaling cascades in controlled experimental systems. This compound is supplied strictly for laboratory research use. It is not approved for human or animal use.
What has preclinical research reported?
Research Context
Laboratory studies involving PT-141 focus on receptor interaction analysis, peptide structure-function relationships, and melanocortin signaling pathways. These references describe areas of scientific investigation only and do not represent therapeutic, diagnostic, or clinical claims. This material is supplied exclusively for controlled laboratory research.
Direct Interaction with Melanocortin Receptors
PT-141’s selective receptor affinity allows researchers to examine the role of MC3R and MC4R receptors in modulating behavioral and neuroendocrine responses. These receptors have been linked to appetite regulation, energy balance, motivational signaling, and stress-related pathways.
Laboratory exploration often involves:
- Mapping receptor binding profiles
- Assessing CNS response patterns
- Evaluating melanocortin system activation
- Observing changes within neural circuits in research models
Research Potential Across a Broad Range of Scientific Fields
Studies often involve experimental subjects or in-vitro models to analyze:
- Neuroendocrine dysfunctions
- Behavioral response modulation
- Stress-induced neural changes
- Hormonal pathway interactions
Because of its strong receptor-based selectivity, PT-141 is frequently incorporated into experimental setups evaluating dose responsiveness, receptor desensitization, cross-pathway interactions, and behavioral shifts.
Research-Grade Purity and Stability
PT-141 10mg is typically provided as a lyophilized powder, allowing researchers to benefit from:
- Extended stability
- Consistent sample integrity
- Controlled reconstitution
- Precision when designing dose-dependent protocols
Advanced lyophilization, purification, and packaging techniques help maintain peptide quality, supporting reproducible data collection and experimental reliability.
How PT-141 Is Utilized in Scientific Research
In controlled laboratory studies, PT-141 is examined for:
- CNS activity mapping
- Behavioral response testing
- Receptor pathway signaling
- Melanocortin system investigation
- Endocrine and neurochemical interaction profiling
- Dose-response and receptor affinity analysis
- Structure-function characterization
Many experimental designs focus on observing how PT-141 influences neural pathways, peptide-receptor dynamics, and behavioral outcomes in research subjects, while ensuring all studies follow proper laboratory safety and handling protocols.
Research Areas
PT-141 is used in experimental research investigating:
- melanocortin receptor signaling
- peptide-receptor interaction dynamics
- intracellular signaling pathway analysis
- peptide stability and structure-function relationships
- experimental assay development
All references to biological systems are provided solely for scientific context and do not imply medical, therapeutic, or clinical applications.
Laboratory Investigation
In research settings, PT-141 may be examined for its interaction with receptor-mediated signaling systems and downstream cellular response pathways. These studies focus on molecular and biochemical mechanisms within controlled experimental models. This compound is supplied strictly for laboratory research purposes and is not intended for human or veterinary use.
References
- Wessells H, Hruby VJ, Hackett J, Han G, Balse-Srinivasan P, Vanderah TW. Ac-Nle-c[Asp-His-DPhe-Arg-Trp-Lys]-NH2 induces penile erection via brain and spinal melanocortin receptors. Neuroscience. 2003;118(3):755-62. doi: 10.1016/s0306-4522(02)00866-7. PMID: 12710982. PMID 12710982
For laboratory research use only. Products on this website are intended solely for in-vitro research. They are not medicines, have not been evaluated by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease. Any administration to humans or animals is strictly prohibited.
What are these peptides made for?
Our peptides are produced exclusively for laboratory and scientific research purposes.
Licensed Peptides™ products are developed using industry-standard synthesis and purification protocols, making them suitable for in vitro research, analytical testing, and experimental models.
Research-grade standards
- Synthesized via Solid Phase Peptide Synthesis (SPPS)
- Purified using advanced HPLC methods
- Verified through analytical quality control processes
- Screened for heavy metals and endotoxins
Consistency across batches
Strict process controls ensure reproducibility, allowing researchers to work with confidence across experiments.
Applications
Our peptides are commonly used in research involving:
- Cellular signaling pathways
- Tissue remodeling and repair mechanisms
- Extracellular matrix regulation
- Molecular biology and biochemical studies
All products are intended for research use only and are not for human or animal consumption, therapeutic use, or clinical application.
Why buy from Licensed Peptides
At Licensed Peptides™, quality isn’t a claim — it’s a controlled, repeatable process.
Every peptide we produce follows a strict, pharma-grade workflow designed to ensure purity, stability, and consistency from synthesis to delivery.
What sets us apart
ISO-certified cleanroom manufacturing
All peptides are synthesized in sterile, controlled environments to eliminate contamination risk and ensure batch consistency.
>99% verified purity (HPLC tested)
We use advanced High-Performance Liquid Chromatography (HPLC) to separate and verify peptide purity with precision.
Comprehensive safety testing
Each batch undergoes heavy metal and endotoxin screening to ensure it is free from hidden contaminants.
Pharma-grade raw materials
We start with rigorously tested amino acids and reagents, ensuring integrity at the molecular level.
Lyophilized for stability
Freeze-dried peptides maintain long-term stability, potency, and reliability for research applications.
Nitrogen-sealed vials
Every vial is protected from oxygen and moisture, preserving structural integrity during storage and transit.
Built for serious research
From synthesis to delivery, every step is engineered to meet the expectations of professionals who require accuracy, consistency, and reliability.
For laboratory research use only. Not for human or veterinary use.
How orders ship
We understand that timing and product integrity are critical for research.
| Ships to | United States (including minor outlying islands) |
|---|---|
| Processing days | Monday to Friday, excluding holidays |
| Daily cut-off | Paid orders placed before 4:00 PM PST are typically shipped the same business day |
| Free shipping | FedEx 2-Day Express on orders over $200 and for VIP members |
| Standard | USPS Ground Advantage, 3–7 business days (not guaranteed) — $8.95 |
| Expedited | FedEx 2-Day $11.95 · UPS 2-Day $19.95 · FedEx Next Day $44.99 |
| Signature | Required on delivery for orders of $1,000 or more |
How orders are handled
Cold chain protection
Products are stored in industrial-grade freezers prior to shipment to maintain stability and purity.
Secure & protective packaging
Each order is carefully packed to protect against temperature fluctuations, moisture exposure, and physical damage during transit.
Tracking
Once your order has shipped you will receive a tracking number by email, so you can monitor delivery progress.
Shipped from the United States
Orders are dispatched domestically from a U.S.-based operation, so there are no international customs steps.
Delivery times
Shipping times are estimates and begin after order processing. Delays may occur due to carrier issues, weather, or other unforeseen factors, and delivery dates are not guaranteed. Full terms are in our Shipping & Delivery Policy.
For laboratory research use only. Not for human or veterinary use.
Additional information
| pack | 1 pack, 3 pack, 5 pack, 10 pack |
|---|
Storage conditions at a glance
| Lyophilized, in transit | Stable for shipping for up to 3–4 months |
|---|---|
| Lyophilized, short term | Room temperature is usually adequate for several weeks; refrigeration under 4°C (39°F) is generally acceptable |
| Lyophilized, long term | Freezer at -80°C (-112°F) for several months to years |
| After reconstitution | Refrigerated; stable for up to 30 days |
| Light and moisture | Keep cold and away from light in the original sealed vial |
Why the powder is stable
All of our products are manufactured using the lyophilization (freeze drying) process, which keeps them stable for shipping for up to 3–4 months.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until it is reconstituted with bacteriostatic water.
Storing vials on arrival
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used in the next several days, weeks or months, short-term refrigeration under 4°C (39°F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
For longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80°C (-112°F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
After reconstitution
Once the peptides are reconstituted with bacteriostatic water, they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
For laboratory research use only. Not for human or veterinary use.
99%+ — Passes ≥99% 
99%+ Every Batch
Often Not Disclosed
