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In stock
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99.8% — exceeds 99.00% minimum spec
- Batch
- P41-202607-001
- Test date
- July 23, 2026
- Method
- HPLC + MS
- Lab
-
Bioviridian
College Station, TX
Description
PT-141 (Bremelanotide)
THIS IS NOT FOR HUMAN CONSUMPTION. SOLD FOR RESEARCH ONLY!
PT-141 peptide​ Details
PPT-141 (bremelanotide) is a synthetic cyclic heptapeptide derived from the melanocortin-family hormone alpha-MSH, developed specifically to act on melanocortin receptors (MC3R and MC4R) in the central nervous system rather than peripheral melanocortin pathways. This distinguishes its mechanism sharply from vascular-acting therapies for sexual dysfunction: PT-141's activity is centered on hypothalamic and limbic-system pathways associated with sexual arousal and desire, independent of the vascular/nitric-oxide mechanism used by PDE5 inhibitors. Bremelanotide holds FDA approval (marketed as Vyleesi) for hypoactive sexual desire disorder in premenopausal women, providing a well-documented human clinical dataset on its central nervous system activity. In broader research contexts, PT-141 continues to be studied for its melanocortin-receptor-mediated effects on libido, arousal pathways, and — because MC4R is also implicated in energy homeostasis — potential secondary metabolic signaling.
PT-141 peptide​ Scientific Research
- Melanocortin Receptor Pharmacology
Used to investigate GPCR-mediated signaling, PT-141 allows researchers to explore agonist binding profiles, EC50 behavior, receptor desensitization, and second-messenger responses (e.g., cAMP, phospho-ERK). Its structure makes it suitable for receptor selectivity studies involving MC3R and MC4R. - Central Nervous System (CNS) Pathway Exploration
PT-141 is employed in rodent models to study hypothalamic signaling, neuromodulation, and neuroendocrine axis regulation. Experimental readouts include immediate early genes (IEGs), CREB activation, and behavioral assays linked to hypothalamic and limbic circuits. - Inflammatory Signaling & Immune Modulation
By targeting MC1R, PT-141 is also examined in immune cell models to evaluate macrophage phenotype modulation, cytokine expression profiles, and systemic inflammatory response markers.
Pigmentation & Melanocyte Function
In melanocyte-focused studies, PT-141 is used to map melanocortin pathway effects on melanin production, enzyme regulation, and UV-response signaling through cAMP/PKA/MAPK pathways.
Article Titles & Journals
- Practical considerations and emerging approaches for the management of vasomotor and sexua
- Female Sexual Desire, Arousal, and Orgasmic Dysfunctions: A Systematic Review and Meta-Ana
- Novel Pharmacologic Treatments of Female Sexual Dysfunction.
- Female Syrian hamster analyses of bremelanotide, a US FDA approved drug for the treatment
- Pharmacotherapy of Hypoactive Sexual Desire Disorder in Premenopausal Women.
Fast, reliable shipping
We offer fast, reliable shipping through UPS and USPS.
Shipping Options
UPS shipping options include:
- Next Day Air
- 2nd Day Air
- 3 Day Select
- UPS Ground
Order Processing
- We ship Monday through Saturday.
- Orders placed before 6:00 PM EST / 3:00 PM PST are typically shipped the same day.
- Orders placed after the daily cutoff or on holidays will be processed on the next available shipping day.
Puerto Rico, Hawaii & Alaska
- Orders shipping to these destinations are sent via USPS unless alternative arrangements have been made in advance.
- Need a different shipping method? Contact us before placing your order so we can discuss available options.
Order Tracking
- Once your order has shipped, you'll receive a shipping confirmation email with tracking information so you can monitor your delivery.
- Orders totaling $200 or more qualify for FREE UPS 2nd Day Air shipping within the continental United States.
- Free 2nd Day Air shipping does not apply to orders shipping to Puerto Rico, Hawaii, or Alaska.
Handled correctly, stability holds
All peptides are supplied as sterile, lyophilized powder and are stable when handled correctly.
Store vials in a cool, dry place away from heat and direct sunlight.
For optimal longevity, keep lyophilized peptides refrigerated to help maintain integrity.
Use an appropriate research diluent (for example, BAC water). Store the reconstituted solution in the refrigerator and use within 20–30 days for best stability.
Minimize exposure to moisture and repeated freeze–thaw cycles. Follow your institution's safety procedures when handling research materials.
Frequently Asked Questions
PRODUCT & PURITY
This product is offered for laboratory and research use only. It is not intended for human consumption, medical use, therapeutic use, or veterinary use.
Yes, all of our products are sterile and sealed with a sterility plug and safety cap.
Our products undergo quality control internally at our lab and then 3rd party tested at Bioviridian (at their Texas facility) prior to shipment. All of our COA's are then posted on our site immediately upon receipt.
99% or higher. Period. The expected purity is listed on the individual product page or Certificate of Analysis, when available.
No. We are a manufacturing company and because these products are sold for research purposes only, we do not provide dosing, administration, or medical-use guidance.
Unless specifically stated otherwise, these products are not approved by the U.S. Food and Drug Administration for therapeutic or diagnostic use.
STORAGE & STABILITY
As a lyophilized powder, peptides are stable. Delays in shipments up to 7 days will have zero to minimal impact on efficacy of peptides. Most precautionary efforts must be made to maintain temperature consistency once reconstituted.
Store the product according to the storage recommendations provided on the label or accompanying documentation in your shipment. Proper storage helps maintain product integrity during its shelf life. Most peptides have an expiration date of 2 years if kept unreconstituted (lyophilized powder).
SHIPPING
Shipping times vary based on your location and the shipping method selected at checkout. We offer shipping options between 1 and 5 days.
No.
Once your order is processed, you will receive a shipping confirmation email with tracking information.
ORDERS
Each order includes the peptide vial as described on the product page above.
We accept all forms of credit cards and Zelle.
If your order has not yet been processed for shipment, we may be able to make changes. Please contact customer support as soon as possible after placing your order.
If your order arrives damaged or incorrect, contact our customer support team promptly at support@peaklabpeptides.com with your order number and photos of the package and product so we can assist you.
For the safety of our researchers and integrity of our products we can not accept returns whatsoever.
SUPPORT
If you have questions about your order or a product, please reach out through our customer support page or contact us at support@peaklabpeptides.com or call/text 605-524-2800.
Purity you can verify
TESTED
VERIFICATION
Peak Lab Peptides maintains quality-control processes and routinely performs third-party testing to support purity and identity verification. COAs are available upon request for applicable batches. Documentation may vary depending on production timelines.
AVAILABILITY
We aim to make batch-level documentation available whenever possible. Our goal is to expand COA access across the full catalog as production capacity grows.
All products are for laboratory research use only and are not intended for human consumption.
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- Grade: For research purposes only. Not for human consumption, therapeutic, or diagnostic use.
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