Sequence
37 amino acids
Origin
Human cathelicidin
Research Dose
Research protocols vary widely. Typical subcutaneous doses range from 50-100mcg. Used in wound care research at various topical concentrations.
Category
Immune
How It Works
LL-37 is the only human cathelicidin antimicrobial peptide. It is part of the innate immune system, released by neutrophils, macrophages, and epithelial cells. LL-37 kills bacteria by disrupting their cell membranes, inhibits biofilm formation, modulates inflammation, and promotes wound healing through angiogenesis and cell migration.
Key Benefits
Broad-spectrum antimicrobial activity
Modulates immune response
May support wound healing
Anti-biofilm properties studied
Research Highlights
The only human cathelicidin antimicrobial peptide
Active against gram-positive and gram-negative bacteria
Disrupts bacterial biofilms
Modulates inflammatory cytokine response
Vitamin D upregulates natural LL-37 expression
Available Forms
- Lyophilized powder for injection
Legal Status
LL-37 is available for research purposes. Not FDA-approved. Not a controlled substance.
Research & Education Only — The information on this page is for research and educational purposes only. It does not constitute medical advice. Consult a qualified healthcare professional before making any decisions.