What is KPV? Alpha-MSH fragment research

> Research-use notice: This article is educational laboratory context only. It is not medical advice. No dosing, administration, or human-use guidance is provided. BlueNex Labs research-use-only products are not intended for human or veterinary use.

KPV is the tripeptide lysine-proline-valine, corresponding to the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH). Laboratories use it as a short probe for melanocortin-related and barrier-signalling questions. This page is a research guide. The single-peptide SKU is the KPV 10 mg product page. A published lot sits on the KPV certificate anchor.

Structure

KPV is discussed as one of the shortest defined fragments in this catalogue:

• Three residues, Lys-Pro-Val, straightforward to identify by mass spectrometry

• Sequence identity with the C-terminus of alpha-MSH, not with the full hormone and not with cyclic analogues such as PT-141

• Distinct from the BPC-157 pentadecapeptide, which the BPC-157 research guide does not cover

• A separate catalogue identity from blend vials that happen to include a KPV fill

The KLOW 80 mg blend combines KPV with other peptides. A KLOW certificate does not document the KPV-only vial, and the KPV certificate does not document KLOW.

Mechanisms discussed in research settings

Papers and reviews place KPV in:

• Inflammatory-pathway signalling assays

• Epithelial-barrier integrity models

• Comparisons with longer alpha-MSH sequences and with other tripeptides

• Broader longevity roundups, including the 2026 longevity note, where it is one section among others

A pathway note is not a protocol.

What this guide is not

It is not a blend page and not a COA library. Cellular SKUs as a group are listed under Cellular & Biological Peptides Canada.

Documentation and RUO

How to read a peptide Certificate of Analysis explains how to match HPLC and mass spectrometry to the vial label.

Research use only. Not for human or veterinary use.