What it is
LL-37 is a synthetic antimicrobial peptide designed to bolster immune resilience. It is a naturally occurring human cathelicidin peptide researched for its role in innate immune defense mechanisms.
Supplement · Peptide
LL-37
5 mg · vegan · gluten-free · 30 caps
frequent infectionslow-immunityslow-recovery immune systemlymphatic systemskin
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How it works
LL-37 functions by directly disrupting microbial membranes and modulating host immune cell activity. It enhances the body's capacity to clear pathogens and supports inflammatory resolution, contributing to immune system resilience.
Who should take it
Adults looking to address frequent infections, low immunity, slow recovery. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
Avoid / careful
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
How long does it take to see effects from LL-37?
Measurable effects on immune resilience are typically observed within 2 to 6 weeks of consistent daily dosing.
Can LL-37 be taken with other supplements?
LL-37 can be layered into a broader protocol. Consult a healthcare professional for personalized stacking advice, especially if on prescription medication.
What is the primary mechanism of LL-37?
LL-37's primary mechanisms involve direct antimicrobial action against pathogens and modulation of immune cell responses to enhance host defense.
Research
6 studies · 2010–2024
Evidence grade
ABCD
C · C · emerging-to-moderate human evidence for immune resilience
From the blog
Editorial notes
SacredBod's longer take on LL-37 — context the structured blocks above don't capture.
About LL-37
LL-37 is a peptide supplement used to support immune resilience. Cathelicidin peptide researched for antimicrobial defence. It is available in capsule form and dosed for adults in India and internationally. As a peptide-tradition entry in the SacredBod catalog, it is positioned as a single-ingredient option that can be used on its own or layered into a broader protocol. LL-37 works through the mechanisms characteristic of its class — see the mechanism and research sections for detail. It primarily acts on the immune system, lymphatic system, and effects are dose-dependent, typically becoming measurable within 2-6 weeks for immune resilience. Consistency matters more than dose size for this category.
Evidence
LL-37 carries an evidence grade of C in the SacredBod catalog, reflecting emerging human evidence for immune resilience. Cathelicidin peptide researched for antimicrobial defence. Benefits are cumulative rather than immediate, typically becoming noticeable within 2-6 weeks for immune resilience, and individual response varies.
Dosing
A typical dose is 5 mg, taken with food, usually in the morning. Start at the lower end, assess tolerance, and stay consistent; more is not automatically better.
Cautions
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
Who it’s for
Adults looking to address frequent infections, low immunity, slow recovery. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
As part of the Peptide category, LL-37 can be used on its own or layered into a broader protocol — see the Goes with panel for evidence-aligned pairings.
Added to your stack.