PEPTIDE_CODEX

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PC-021 · antimicrobial · ll-37

LL-37

Cathelicidin

Also: CAP-18 · hCAP-18

human trialanimal studyin vitro

The only human cathelicidin antimicrobial peptide. LL-37 is part of the innate immune system, produced by immune cells, epithelial cells, and keratinocytes. It has broad-spectrum antimicrobial activity against bacteria, viruses, and fungi, plus immunomodulatory and wound healing properties.

Disrupts microbial cell membranes through electrostatic interaction with negatively charged lipids. Also modulates immune response by chemotacting immune cells, neutralizing endotoxins (LPS), promoting angiogenesis, and influencing adaptive immunity through dendritic cell activation.

  • Infection resistance
  • Biofilm disruption
  • Immune support
  • Wound healing
  • Lyme disease support
  • · Injection site irritation
  • · Mild inflammation at injection site

Mechanism of Action

Disrupts microbial cell membranes through electrostatic interaction with negatively charged lipids. Also modulates immune response by chemotacting immune cells, neutralizing endotoxins (LPS), promoting angiogenesis, and influencing adaptive immunity through dendritic cell activation.

Common Uses

Infection resistanceBiofilm disruptionImmune supportWound healingLyme disease support

Dosage & Pharmacology

DOSAGE RANGE: 50-100 mcg daily (subcutaneous)
HALF-LIFE: ~4-6 hours
MOL. WEIGHT: 4493.33 Da
Dosage information is for research reference only. Not a recommendation.

Known Side Effects

  • Injection site irritation
  • Mild inflammation at injection site

Legal Status

US:Not FDA-approved, research chemical
UK:Not approved
EU:Not approved
AU:Not approved

Related Peptides

View all LL-37 research on PubMed