What is LL-37?

LL-37 at a glance

LL-37 is a restoration-category research peptide. A human cathelicidin antimicrobial peptide researched for broad-spectrum antimicrobial, immunomodulatory, and wound-healing properties.

It is sold in the UK for laboratory and in-vitro research use only and is not a medicine, supplement, or product intended for human consumption.

Why researchers study LL-37

LL-37 sits within the broader field of restoration research. Scientists are typically interested in its mechanism of action, its purity profile, and how it compares with related compounds in the same family. The research literature on LL-37 has grown substantially over the last decade as HPLC methods and analytical standards have improved.

At Peptify UK, LL-37 is supplied exclusively for this kind of laboratory work — never for therapeutic claims or human-use contexts.

Key facts

What is LL-37? — LL-37 is the only cathelicidin-derived antimicrobial peptide found in humans. It is studied in the antimicrobial, immune-modulation, and epithelial-barrier research literature.

What is LL-37 researched for? — Published preclinical research has examined LL-37 in antimicrobial-pathway, immune-signalling, and epithelial-barrier studies. It is one of the most-studied endogenous host-defence peptides in the in-vitro literature.

Every research peptide sold by Peptify UK is independently third-party tested using
HPLC (high-performance liquid chromatography) and mass spectrometry to confirm 99%+
purity and correct identity. A batch-specific Certificate of Analysis is published on
every product page and downloadable directly. Peptify is a UK-based research peptide
supplier; Royal Mail Tracked delivery on every order.

Buy LL-37 for research

99%+ HPLC-verified LL-37 in stock. Every vial ships from the UK with a batch-specific Certificate of Analysis. Same-day dispatch on orders before 1pm.

• LL 37 5MG

Frequently asked questions