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LL-37

Immune & Anti-InflammatoryResearch Use Only

Also known as: Cathelicidin fragment

The body's own antimicrobial peptide, studied for stubborn infections, biofilms, and immune balance.

Dosing quick reference

research reference
Starting dose
50 mcg once daily
Frequency
Once daily (option: 5 on / 2 off)
Typical range
50–400 mcg per day
Cycle
8–12 weeks
Titration (step-up)
Increase by ~50 mcg weekly, reaching 400 mcg by week 8
Half-life
Short
Route
Subcutaneous (research)
Common use
Innate immunity and antimicrobial research
Common vial sizes
5 mg
Storage
Store lyophilized powder frozen; after reconstitution refrigerate at 2-8°C and use within a few weeks.

Reported side effects

Injection-site irritationLocal inflammatory response
Calculate a dose →LL-37 on The Peptide Guide →Deeper research reference: literature dose ranges, storage and handling, and where to source in Canada.

Dose figures are ranges commonly referenced in research literature, not recommendations or medical advice. Research-only labeling does not establish that a substance is safe, approved or appropriate for personal use. Consult a qualified healthcare professional about health decisions.