Back to library

Educational Wellness Information Only

This platform provides peer-reviewed research summaries and educational content about peptides for wellness and optimization purposes. Nothing on this site is intended as medical advice, diagnosis, or treatment. We do not claim any peptide can diagnose, treat, cure, or prevent any disease. Always consult a licensed healthcare provider before beginning any wellness protocol.

Statements on this site have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability and eligibility vary.

Immune · Antimicrobial

LL-37

Human cathelicidin peptide with antimicrobial and immune-modulating activity.

Mechanism of Action

The only human cathelicidin antimicrobial peptide. Research demonstrates broad antimicrobial activity against bacteria, viruses, and fungi, plus immunomodulatory effects on neutrophils, macrophages, and wound healing.

Research Areas

Chronic biofilm infections
Wound healing and dermatology
Innate immune modulation

Common Research Protocols

Local and subcutaneous research

Investigational use in chronic infection and wound research.

Protocols summarized for educational reference from published research. Not dosing guidance.

Cited Research

[1]Frontiers in Immunology·2020

LL-37: a multifunctional host-defense peptide

Comprehensive review of antimicrobial and immunomodulatory roles.

Important Considerations

  • Not FDA-approved.
  • Pro-inflammatory effects possible at higher doses.

Explore more peptides

Educational Information Only — Not Medical Advice

All content on this page is for educational and informational purposes only. It is not medical advice, diagnosis, or treatment. We make no claims that any peptide can diagnose, treat, cure, or prevent any disease. Peptides discussed are not FDA-approved for the indications listed unless explicitly stated otherwise.

Always consult a licensed healthcare provider before beginning any wellness protocol. Statements have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability, eligibility, and pricing may vary.

Searching the library…

Ask the Library

Ask anything about peptides — answers come from our curated reference library with citations.

Find a pharmacy that carries LL-37

Leave your details and a vetted partner pharmacy will reach out with availability and pricing.