Evidence-led peptide reference
KPV research guide
Also known as: Lys-Pro-Val
Updated 10 October 2026 · Editorial standards
A three-amino-acid alpha-MSH fragment investigated in inflammatory and barrier models.
Identity and context
What is KPV?
KPV is the tripeptide lysine-proline-valine, corresponding to the C-terminal three amino acids of alpha-melanocyte-stimulating hormone (alpha-MSH). It is much shorter than the parent hormone and does not reproduce every alpha-MSH action.
Its small size has made it useful in experiments examining anti-inflammatory signalling and epithelial delivery. However, a convenient experimental sequence is not automatically a clinically useful treatment.
Mechanism under investigation
How is KPV studied?
Laboratory work suggests KPV can influence inflammatory-cell activation, cytokine release and NF-kappa-B-related signalling. Some effects appear not to require the classical melanocortin receptor activity associated with full-length alpha-MSH.
Barrier and transporter studies are also relevant because local peptide concentration, stability and movement across epithelial tissue can determine what an experiment actually measures.
Research map
Main areas of interest
Inflammatory signalling
Cell models examine cytokines, immune-cell responses and transcriptional pathways involved in inflammation.
Gut barrier models
Preclinical intestinal studies explore epithelial inflammation, transport and tissue protection.
Skin models
KPV has been studied in local inflammatory and wound-related systems, primarily before the clinical stage.
Strength of evidence
What does the evidence actually show?
Evidence is separated by level because a cell experiment, an animal model, a human trial and a regulatory decision answer different questions.
Critical reading
Limitations and unanswered questions
- A three-amino-acid sequence may be rapidly degraded; formulation and exposure are central research questions.
- Results from induced animal inflammation do not establish outcomes in complex human disease.
- Marketing descriptions often run ahead of the available controlled human evidence.
- A purity percentage does not provide a complete safety or sterility assessment.
Analytical context
What a certificate of analysis can—and cannot—tell you
A certificate of analysis is a report about the particular submitted sample and tests named on that report. It can help document identity, measured amount or purity when suitable methods were used. It does not prove that every batch is identical, that a material is sterile or endotoxin-free, that it is clinically effective, or that it is approved for human use.
No product-specific COA is currently linked to this guide. Absence of a displayed report should not be interpreted as analytical verification.
Learn how to read a peptide COA →Questions answered
KPV FAQs
What do the letters KPV mean?
They are the one-letter amino-acid codes for lysine, proline and valine.
Is KPV the same as alpha-MSH?
No. It is only the three-amino-acid C-terminal fragment of the much longer hormone.
Why is KPV studied in gut models?
Researchers are interested in inflammatory signalling and epithelial-barrier biology, including how the small peptide is transported or degraded.
Are the human benefits established?
No. The evidence is predominantly laboratory and animal research.
Primary and authoritative reading
Sources and further reading
Sources are provided so readers can inspect the underlying literature and current official information. Inclusion does not mean every claim in a paper has been independently confirmed.
- KPV intestinal-inflammation study ↗Primary research in cells and two mouse colitis models; preclinical findings do not establish human efficacy.
- KPV anti-inflammatory study ↗Foundational peer-reviewed experimental study indexed by PubMed.
- PubMed KPV peptide literature ↗Broader indexed literature search.
Source and wording review: 7 October 2026. Prepared with AI assistance; no independent clinical review is claimed. Read the editorial policy or suggest a correction.