Not for human consumption

PT-141 — MC3R/MC4R Melanocortin Receptor Agonist | Research Grade Peptide

PT-141 is a 7-amino-acid synthetic melanocortin receptor agonist peptide studied for its central nervous system effects on MC3R and MC4R receptor pathway signaling in research models. Supplied as a lyophilized vial for in-vitro laboratory research use only.

Research-grade specs

Sequence length: 7 amino acids
Class: Melanocortin receptor agonist (MC4-R focus)
Half-life: ~2 hours

Studied applications

MC4-R receptor research
CNS-mediated melanocortin receptor pathway studies
Comparative melanocortin agonist research

Quality & trust

≥99% HPLC purity, third-party tested
Mass spectrometry identity confirmation
LAL endotoxin testing on every batch
Batch-specific Certificate of Analysis included
USA same-day shipping (orders before 2pm CT M-F)

Bulk & Wholesale Pricing

Contact Sales

Frequently Asked Questions

Do I need a coupon code for bulk discounts?
No. Discounts apply automatically — just add the quantity to your cart and the bulk price updates at checkout.

What are the bulk discount tiers?
10% off for 3–5 units, 15% off for 6–8 units, and 20% off for 10 or more units.

Can I combine this with other discount codes?
No. Bulk discounts cannot be combined with other discount codes or coupons.

How do I order larger or wholesale quantities?
For volume or wholesale pricing, click Contact Sales or email sales@livewellpeptides.com with any further questions.

Thank you, Team LiveWell.

Recent Peer-Reviewed Research (for informational purposes only)

The citations below are provided solely for research and educational reference. This product is sold for laboratory research use only and is not intended to diagnose, treat, cure, or prevent any disease.

Merlino F, Jia L, Boccino I, et al.. Goldilocks-Inspired Design of Mid-Size Macrocycles for Selective Targeting of Human Melanocortin Receptors. J Med Chem. 2026. PMID: 42340853.
Ashour AM. Clinical trial evidence on emerging pharmacological therapies for hypoactive sexual desire disorder in women: a systematic review and analysis of completed studies registered on ClinicalTrials.gov. Front Med (Lausanne). 2026. PMID: 42254382.
Tran L, Nguyen TD, Gad AG, et al.. FDA-Approved Drugs Containing D-Amino Acids: A Historical and Developmental Perspective. Drug Dev Res. 2026. PMID: 42041173.
Pfaus JG, Balon R. Should Bremelanotide Be Considered for the Treatment of Sexual Arousal and Desire Disorders in Men? J Clin Psychopharmacol. 2026. PMID: 41960633.
Renke G, Chinellato L. Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives. Int J Mol Sci. 2026. PMID: 42123471.

Citations auto-updated weekly from the U.S. National Library of Medicine (PubMed). Last updated: 2026-07-13.

$ 75.00

⚠️ Strictly for laboratory research use only. Not for human or animal consumption.

Size

Clear

Quantity	Price	Discount
3-5	$ 67.50	10%
6-9	$ 63.75	15%
10+	$ 60.00	20%

Add $ 200.00 to cart and get free shipping!

Description

PT-141 is a synthetic 7-amino-acid melanocortin receptor agonist peptide investigated for its effects on MC3R and MC4R receptor pathway interactions in controlled laboratory settings. This lyophilized research compound is supplied strictly for in-vitro research use only and is not intended for human or veterinary use. Available in 10mg vial format with ≥99% HPLC purity and a batch-specific Certificate of Analysis included.

⚠️ Research Use Only. Not for human consumption, veterinary use, or clinical application. Not evaluated by the FDA. Must be 21+ to purchase.

Reference Link: Click Here

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Research Use Only Disclaimer: This product is sold strictly for in vitro laboratory research. NOT for human or animal consumption. LiveWell Peptides makes no medical claims.

Why Researchers Choose LiveWell Peptides for PT-141

LiveWell Peptides is recognized as the best peptide company 2026 and a trusted peptide vendor for laboratories and independent researchers across the United States and internationally. Every batch of PT-141 ships with a verified certificate of analysis (COA), confirming identity, purity, and sterility — because transparency is non-negotiable when sourcing research peptides free shipping USA.

As a cGMP peptide manufacturer headquartered in Dallas, Texas, LiveWell maintains pharmaceutical-grade quality controls that rival any compounding pharmacy alternative peptides supplier. Whether you are building a peptide stack for research, exploring anti-aging peptides buy online, or investigating peptides for bodybuilding research, our catalog delivers the cheapest research peptides with COA without sacrificing quality.

Since Peptide Sciences shut down, researchers ask: “peptide sciences shut down where to buy?” — LiveWell Peptides is the answer. As a peptide supplier with certificate of analysis, we are the go-to Peptide Sciences alternative trusted by the research community. Searching for peptides near me, an ozempic alternative natural, or simply looking to buy peptides online USA? LiveWell ships fast with free domestic shipping — plus international shipping to Colombia, Mexico, Brazil, Argentina, Chile, and Peru.

LiveWell Peptides review: “Exceptional purity, fast shipping, and real COAs. Best research peptide source available.” — Verified Researcher

Disclaimer: This product is sold strictly for laboratory and research use only. Not for human consumption. No medical claims are made or implied. Researchers are responsible for compliance with all applicable local, state, and federal regulations.

Péptidos de Investigación — LiveWell Peptides

LiveWell Peptides es su proveedor de péptidos Estados Unidos de confianza para comprar péptidos de investigación de la más alta calidad. Cada lote de PT-141 incluye péptidos con certificado de análisis que garantiza pureza e identidad verificadas. Como la mejor empresa de péptidos 2026 y la principal alternativa a Peptide Sciences, ofrecemos péptidos cGMP fabricados en USA con estándares farmacéuticos.

Nuestros péptidos de alta pureza con COA están disponibles para comprar PT-141 online con envío internacional de péptidos a toda Latinoamérica. Realizamos envío a Colombia, México, Argentina, Chile, Perú y Brasil — ideales para péptidos para investigación científica en universidades y laboratorios de todo el continente.

Aviso: Este producto se vende exclusivamente para uso en investigación y laboratorio. No apto para consumo humano.

Frequently Asked Questions

What is PT-141 in research terms?

PT-141, also called bremelanotide, is a synthetic cyclic heptapeptide derived from alpha-MSH. In laboratory research it is studied as an agonist at the MC3R and MC4R melanocortin receptors, which places it in the melanocortin signalling literature rather than the vascular pathway earlier compounds in this space acted on.

Is PT-141 a peptide?

Yes. PT-141 is a seven amino acid cyclic peptide, structurally related to Melanotan II but modified so that its receptor binding profile differs. It is supplied here as a lyophilized powder in a sealed research vial for laboratory use only.

How is PT-141 reconstituted for research use?

Lyophilized PT-141 is typically reconstituted with bacteriostatic water in a laboratory setting. Solvent is added slowly down the inside wall of the vial rather than directly onto the powder, and the vial is swirled rather than shaken. Reconstituted material is stored refrigerated and protected from light.

What purity is your PT-141 and is a COA available?

Every LiveWell research vial is tested to 99 percent or higher purity and ships with a certificate of analysis. COAs are published in our COA library and are matched to the lot number printed on the vial label.

Where is LiveWell PT-141 manufactured?

In our cGMP facility in Dallas, Texas. LiveWell is a domestic manufacturer rather than a reseller, which is why lot traceability runs from synthesis through to the COA on your vial.

How should PT-141 be stored?

Lyophilized vials are stored sealed, refrigerated, and protected from light. Once reconstituted, material is kept refrigerated and used within the window appropriate to the research protocol. Repeated freeze and thaw cycles are avoided.

Is PT-141 sold for human use?

No. All LiveWell products are supplied strictly for laboratory research use. They are not drugs, not supplements, and not for human or veterinary consumption.