Fact-Checked·Verified against peer-reviewed sources · Last updated Oct 18, 2026·For research use only - not for human consumption
AntimicrobialEmerging Research

LL-37 Fragment

Also known as: KR-12 · kr12 · LL-37 minimal antimicrobial domain

For in-vitro (laboratory) research purposes only. Not for human or animal consumption.

Peptide Stores Online branded research vialCOMING SOON

Available Forms

InjectableTopical

Research Applications

AntimicrobialImmune Support

Check independent lab results, free

Finnrick Analytics publishes independent lab test results for peptide products from named vendors, and anyone can check the published results for free.

For in-vitro research use only. Not for human consumption.

1What Is LL-37 Fragment?

Shortest antimicrobial fragment of LL-37 retaining antibacterial and anti-biofilm activity.

4Published Research - Plain English Summaries

The studies below have been published in peer-reviewed journals. Summaries are written in plain language - no jargon. Citations are provided as text only.

in vitro study

Włodarczyk J, Kamysz E, Fichna J · 2025 · Pharmacological reports : PR · PMID 41091413

in vitro study

Farzi N, Oloomi M, Bahramali G, Siadat SD, Bouzari S · 2024 · Probiotics and antimicrobial proteins · PMID 37148452

animal study

Mori T, Hazekawa M, Yoshida M, Nishinakagawa T, Uchida T, Ishibashi D · 2021 · International journal of pharmaceutics · PMID 34324984

animal study

Mori T, Yoshida M, Hazekawa M, Ishibashi D, Hatanaka Y, Nagao T, Kakehashi R, Kojima H, Uno R, Ozeki M, Kawasaki I, Yamashita T · 2021 · International journal of molecular sciences · PMID 34065861

in vitro study

Saporito P, Vang Mouritzen M, Løbner-Olesen A, Jenssen H · 2018 · Journal of peptide science : an official publication of the European Peptide Society · PMID 29737589

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All content on this page is for in-vitro research purposes only. Not intended for human or animal use. Consult a licensed professional before handling research chemicals. No content on this page constitutes medical advice or a treatment recommendation.

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All products listed on Peptide Stores Online are for in-vitro laboratory and educational research purposes only. Not for human or animal consumption. Not evaluated by the Food and Drug Administration. Not intended to diagnose, treat, cure, or prevent any disease or condition. All sellers and buyers agree to full research-use-only terms at account creation. Peptide Stores Online assumes no liability for misuse of any product listed on this platform.