This site requires age verification. Please enable JavaScript to continue.
purple peptides logo 240x40

Need help? Text us, and a team member will reply in mins +1 (323) 393-3703

  • 24/7 Support
  • Batch Produced, Batch Tested
  • Fast & Discreet Shipping
  • Affordable Pricing

Product Catalog

Blends

Protocols

Explore Our Products

All orders ship same day from our US facility.

🔍

Have questions? Text us.

Reach out and get a response within minutes.

+1 (323) 393-3703

Text US

Made in the USA

Peptides are precision-synthesized and lyophilized at state-of-the-art laboratories in the United States.

Frequently Asked Questions

Peptides are short chains of amino acids that occur naturally in organisms, where they act as messengers in many biological systems. While some peptides have been developed for medical use, laboratory research focuses on understanding their activity at the cellular level, examining how they impact essential processes in vitro.

Products from Direct Peptides do not include usage instructions, as they are strictly for in vitro research and prohibited by law for human or animal use. Misuse or unlawful application will result in permanent denial of service.

Orders are typically processed and shipped within 24 hours on weekdays. Delivery times vary by location, but most domestic orders arrive within 3–5 business days. You’ll receive tracking information as soon as your order ships.

purple peptides
Store/Root/featured
KPV

KPV

$0.00
Sold out
Recovery Compound
Dosage
Sold out
Product Details

What is KPV?

KPV (Lys-Pro-Val) is a tripeptide fragment derived from α-melanocyte-stimulating hormone (α-MSH) studied for its role in inflammatory signaling, immune modulation, and epithelial integrity. In laboratory and preclinical models, KPV has been examined for its interaction with cytokine pathways, NF-κB signaling, and mucosal barrier function, making it a compound of interest in immune and gastrointestinal research.

Certificate of Analysis

Third-party tested for purity and analytical verification

KPV Overview

KPV is a short peptide derived from the C-terminal region of α-MSH, studied for its influence on immune signaling, inflammatory response regulation, and epithelial protection pathways. In laboratory models, KPV has been investigated for its ability to interact with pro-inflammatory cytokines, macrophage signaling, and barrier-tissue biology, particularly in gastrointestinal and dermatological research contexts.

  • Immune signaling and inflammatory response regulation
  • Epithelial protection and mucosal barrier function
  • Macrophage activity and cytokine pathway interaction

Ongoing research continues to examine KPV in experimental models focused on immune modulation, gastrointestinal tissue integrity, and inflammatory pathway regulation.

Moss J. et al., 2000

History and Development

Research on KPV originates from studies of melanocortin peptides, which revealed that certain short fragments retained biological activity independent of the full α-MSH molecule. KPV was identified as one of the smallest active fragments capable of influencing immune and inflammatory signaling pathways.

Since its discovery, KPV has been studied in experimental models involving intestinal tissue, skin biology, and systemic inflammatory responses, contributing to ongoing research in peptide-mediated regulation of immune function.

Hiltz M.E. & Lipton J.M., 1989

KPV Structure

  • CAS #: 3061-91-6
  • Molecular Formula: C₁₆H₂₈N₆O₅
  • Molecular Weight: 388.4 g/mol
  • PubChem ID: 16129619

Research Findings

KPV has been studied across immunological, gastrointestinal, dermatological, and systemic research models, with findings highlighting its association with cytokine modulation, epithelial protection, and inflammatory pathway regulation. Research also examines its influence on NF-κB signaling, macrophage activity, and mucosal barrier stability in preclinical settings.

Key Areas of Investigation

  • Immune: cytokine signaling, inflammatory modulation
  • Gastrointestinal: epithelial integrity, mucosal barrier models
  • Dermatological: skin inflammation, tissue response
  • Systemic: immune balance, stress response pathways

Together, these findings position KPV as a valuable research compound for studying immune regulation, inflammatory signaling, and barrier-tissue biology in laboratory models.

Moss J. et al., 2000

References

Show More
Save this product for later
Share this product with your friends
Pin it
KPV
You May Also Like
BPC-157 + TB-500
BPC-157 + TB-500
BPC-157 + TB-500
Recovery Compound
SKU BPC-157 + TB-500 new
$99.00
MOTS-c
MOTS-c
MOTS-c
Metabolic Compound
SKU motc
$49.00
CJC-1295 + Ipamorelin
CJC-1295 + Ipamorelin
CJC-1295 + Ipamorelin
Growth Compound
SKU cjc
$89.00
Powered by Lightspeed
Display prices in:USD

Verified compounds.
Ready to ship.

Need help? Text us, and a team member
will reply in minutes.

+1 (323) 393-3703
© Purple Peptides 2026. All rights reserved
The Purple Standard Privacy Policy Terms of Service

If you are an affiliate, join our program here.

The statements made on this website have not been evaluated by the U.S. Food and Drug Administration. The products offered are not intended to diagnose, treat, cure, or prevent any disease. Purple Peptides is not a compounding pharmacy or chemical compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, and all products are sold strictly for research purposes only and are not for human or animal consumption.