AntimicrobialEmerging Evidence

LL-37

Also known as: Cathelicidin, hCAP-18

Human antimicrobial peptide with broad-spectrum activity against bacteria, fungi, and viruses.

Benefits

6

Conditions

6

Evidence

Extensive in vitro and preclinical studies, limited human trials+ studies

Source

Naturally occurring human cathelicidin, synthesized therapeutically

Overview

Human antimicrobial peptide with broad-spectrum activity against bacteria, fungi, and viruses.

Mechanism of Action

Disrupts microbial membranes via carpet-like mechanism, binds LPS to neutralize endotoxins and block TLR4, inhibits biofilm formation, exhibits immunomodulatory effects through chemokine induction, promotes wound healing via TGF-β pathway.

Key Benefits

  • Broad-spectrum antimicrobial activity
  • Anti-biofilm effects
  • Neutralizes bacterial endotoxins
  • Promotes wound healing
  • Modulates immune response
  • Antiviral effects

Clinical Applications

Chronic infectionsBiofilm-associated infectionsWounds and ulcersRespiratory infectionsSkin infectionsSepsis

Dosing Guidelines

Topical

Typical DoseVariable concentration
Frequency1-2 times daily
DurationUntil infection cleared

Subcutaneous injection

Typical Dose5-20 mg
Frequency2-3 times weekly
Duration2-8 weeks

* Dosing should be individualized. Always consult with a qualified healthcare practitioner.

Research & Evidence

Evidence Level
Emerging
Studies

Extensive in vitro and preclinical studies, limited human trials

Summary

Well-characterized antimicrobial mechanisms in vitro. Limited human clinical data. Strong preclinical evidence for infection control and wound healing.

Safety Information

Potential Side Effects

  • Injection site reactions
  • Local irritation
  • Potential cytotoxicity at high doses

Contraindications

  • Pregnancy
  • Breastfeeding

Interactions

  • Unknown

Quick Facts

CategoryAntimicrobial
SourceNaturally occurring human cathelicidin, synthesized therapeutically
Legal StatusResearch compound, not FDA approved
Gabriel Brain Score
79/ 100

Source Your Protocol

Our preferred peptide partner offers lab-tested, COA-verified peptides with optional physician oversight. Sourced from US-regulated facilities.