Research Peptide · US Supplier
Buy KPV in the USA
KPV (Lys-Pro-Val) — the C-terminal tripeptide fragment of α-MSH — supplied for laboratory research. ≥99% HPLC purity, batch-matched third-party COA, same-day US shipping.
About This Compound
KPV is a synthetic tripeptide with the sequence Lys-Pro-Val, corresponding to the C-terminal three residues of α-melanocyte-stimulating hormone (α-MSH). Since the mid-1990s it has been widely referenced in the anti-inflammation, cytokine-modulation, and mucosal-repair preclinical literature — particularly in in-vitro models of intestinal-epithelium and dermal-inflammation.
Because KPV is a short and chemically simple linear tripeptide, it is well-suited to SPPS and to standard purification and QC workflows. BioInfinity supplies KPV synthesized by Fmoc SPPS, purified by preparative reverse-phase HPLC to ≥99%, and identity-confirmed by ESI-MS. Endotoxin below 0.5 EU/mg by LAL. Every lot ships with a third-party Verum Analytics COA.
KPV is presented as a lyophilized white powder in septum-sealed 5 mg or 10 mg vials for reconstitution with bacteriostatic water for laboratory use.
Quality Benchmarks
Every batch shipped from BioInfinity is verified against these specifications by an independent third-party lab before release.
- Purity
- ≥ 99% by reverse-phase HPLC
- Identity
- Confirmed by ESI-MS mass spectrometry
- Endotoxin
- < 0.5 EU/mg (LAL assay)
- Third-Party COA
- Verum Analytics (Switzerland) — batch-matched
- Origin
- Solid-phase peptide synthesis (SPPS), Fmoc chemistry
- Presentation
- Lyophilized white powder, septum-sealed vial
- Storage
- Refrigerate 2–8 °C; long-term −20 °C, protect from light
- Batch Traceability
- Every vial tied to a lot number & verification code
Research Applications in the Literature
Non-exhaustive list of subjects investigated in the published preclinical / in-vitro literature. Provided for research-context reference only — not a claim of efficacy.
- NF-κB signalling in-vitro studies
- Cytokine (TNF-α, IL-6, IL-8) modulation preclinical models
- Intestinal epithelial barrier / TEER models
- Dermal-inflammation mouse-model literature
- Melanocortin-receptor-independent anti-inflammatory research
- Colitis preclinical models (DSS-induced)
- Mast-cell degranulation assays
Frequently Asked Questions
Where can I buy KPV in the USA?▾
BioInfinity is a US-based research peptide supplier shipping KPV same-day from our Manhattan facility. Every vial ships with a batch-matched third-party Certificate of Analysis (COA) and includes cold-chain packaging when the transit route requires it.
What purity is your KPV?▾
Our KPV is ≥ 99% pure by reverse-phase HPLC, identity-confirmed by mass spectrometry, and endotoxin-tested via LAL assay. The exact assay values for the batch you receive are published on your product page and are also included as a printed COA in the shipment.
Do you provide a Certificate of Analysis (COA) with KPV?▾
Yes. Every shipment includes a batch-matched COA from an independent third-party laboratory (Verum Analytics, Switzerland). You can also verify the batch online in our public COA library using the verification code printed on the vial label — no login required.
How is KPV shipped?▾
USPS Priority (2-3 business days) or UPS Ground (3-5 days). Cold-chain packaging with gel packs sized to the transit route. Discreet plain unbranded outer boxes — the label carries only the address and standard postal markings.
What payment methods can I use for KPV?▾
Credit / debit card (Visa, Mastercard, Amex, Discover), Zelle, Venmo, Cash App, USDC stablecoin, and wire transfer for institutional orders. Zelle typically clears fastest and is the most common payment method our repeat customers use.
Is KPV FDA-approved or intended for human use?▾
No. KPV is not FDA-approved for any therapeutic indication. BioInfinity supplies KPV strictly for in-vitro laboratory research. It is not intended for human, veterinary, or in-vivo use of any kind.
How should I store KPV once it arrives?▾
The lyophilized (freeze-dried) powder is stable at 2–8 °C refrigeration for normal-use timeframes. For extended storage until the expiry date, store at −20 °C protected from light. Once reconstituted for bench work, refrigerate at 2–8 °C and use within 3–4 weeks per general peptide-handling literature.
Can I get a bulk / institutional discount on KPV?▾
Yes. Professional accounts qualify for tiered volume discounts. Create a Professional account at /account, or e-mail [email protected] with your institution and PO details.
What is your return policy on KPV?▾
Unopened, cold-chain-intact vials can be returned within 14 days of delivery for a refund minus return shipping. Opened vials are non-returnable due to the nature of the product. If a shipment arrives damaged or thawed, contact us within 48 hours for a free replacement.
How fast do orders for KPV ship?▾
Orders placed by 3:00 PM ET Monday–Friday ship same-day from Manhattan. Weekend orders ship the following Monday. You'll receive a tracking number by email the moment the label is scanned by USPS or UPS.
Do you ship KPV internationally?▾
We ship domestically within the 50 United States plus Puerto Rico and the US Virgin Islands. International shipments are evaluated case-by-case and require additional documentation — please contact [email protected] for a quote.
Where can I read your KPV COA?▾
Every batch's COA is browsable from our public /coa-library page. You can also click the "View COA" button on the KPV product page (/product/kpv) or on the vial label itself, which carries a QR code that resolves to the batch's verification page.
Is KPV an α-MSH agonist?▾
KPV corresponds to the C-terminal tripeptide of α-MSH but does not itself bind the melanocortin receptors in the way the full α-MSH sequence does. The preclinical literature investigates KPV as a receptor-independent anti-inflammatory tool compound.
What sizes does KPV come in?▾
5 mg and 10 mg septum-sealed lyophilized vials. Institutional bulk sizes on request.
Related Research Peptides
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Ready to Order?
Same-day shipping from our Manhattan facility. Third-party Certificate of Analysis included with every shipment.
All products sold by BioInfinity are supplied strictly for in-vitro laboratory research use only. They are not FDA-approved for any therapeutic indication and are not intended for human or veterinary use.