PepVault
/ database / Antimicrobial

LL-37

Also: Cathelicidin

Antimicrobial peptide used for chronic infections and biofilm.

Evidence
anecdotal
Legal status
research only
Half-life
Short
Routes
subq
View on Limitless LifeAdd to compare
What it is

LL-37 is the active form of the human cathelicidin peptide. It has broad antimicrobial activity and is studied for chronic Lyme, persistent biofilm, and skin infections.

Mechanism

Endogenous antimicrobial peptide. Disrupts bacterial and biofilm membranes; modulates immune response.

Outcomes it's matched to
  • Inflammation

    Inflammation Control

    Modulates inflammatory cascade alongside antimicrobial action.

    STRENGTH
    60%
  • Glow

    Skin, Hair & Glow

    Reduces colonization in inflammatory skin conditions.

    STRENGTH
    50%
Safety

Can produce strong Herxheimer-like reactions on initiation.

  • Pregnancy
  • Active autoimmune flare
Legal context

Research-only.

1:1 GUIDANCE

Have questions about this peptide?

Get free 1:1 guidance from a peptide professional before you start. They'll help you think through dosing, stacking, and whether this fits your goals.

REQUEST A CALL →
PepVault

An outcome-driven reference for modern peptides. Educational only — not medical advice, not a sales platform, not affiliated with any clinic.

Disclaimer: PepVault is an educational resource. Nothing on this site is medical advice. Many peptides discussed are research compounds and are not approved by the FDA or equivalent agencies. Always consult a qualified clinician before starting any protocol.

© 2026 PepVault