LL-37 (LL37)

Immune Preclinical

Reviewed by The Peptide Dispatch Editorial Team · Last reviewed July 6, 2026

TL;DR — LL-37 at a Glance

LL-37 (LL37) is a immune peptide, at the preclinical stage in the published literature. Human cathelicidin antimicrobial peptide with broad-spectrum antimicrobial activity and immunomodulatory effects.

Human cathelicidin antimicrobial peptide with broad-spectrum antimicrobial activity and immunomodulatory effects.

Key Data

Research StatusPreclinical
Half-LifeUnknown
AdministrationSubcutaneous injection
Doses Reported in Published Studies100-200 mcg

Mechanism of Action

Direct antimicrobial action, immune cell activation, wound healing promotion.

Reported Benefits

Frequently Asked Questions

What is LL-37?

Human cathelicidin antimicrobial peptide with broad-spectrum antimicrobial activity and immunomodulatory effects.

How does LL-37 work?

Direct antimicrobial action, immune cell activation, wound healing promotion.

What is the research status of LL-37?

LL-37 is at the following stage in the published literature: Preclinical. All information is for research and educational purposes only.

What is the half-life of LL-37?

Reported half-life: Unknown.

How is LL-37 administered in research?

Reported administration route in the literature: Subcutaneous injection. This is not a recommendation for human use.

Educational content, not medical advice. Effects described are drawn from cited research in study subjects.

← All Peptides Dosing Calculator The Dispatch Home