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Not only do they possess an antibacterial, antifungal and antiviral function, they also show a chemotactic and immunostimulatory/-modulatory effect.
— Vandamme et al., Cellular Immunology (2012) doi:10.1016/j.cellimm.2012.11.009
In research models, LL-37 has been observed to disrupt microbial membranes through electrostatic interactions, while also modulating immune cell recruitment, cytokine production, and wound-model signalling. Studies note it neutralizes bacterial endotoxins (LPS) and can penetrate and disrupt established biofilms. Areas of research interest include: Broad-spectrum antimicrobial activity studied in research; Bacterial biofilm disruption investigated in models; Immune response modulation reported in studies.
Yes. Each batch of LL-37 is analyzed by an independent third-party laboratory. Batch LL301 (results dated November 28, 2025) reported average purity of 98.64% and average mass of 10.07 mg. Full Certificate of Analysis documentation is available for this product.
Extensively studied as a key innate immune defence molecule. Published research demonstrates broad antimicrobial efficacy, biofilm disruption capabilities, and immune-modulatory properties. Research applications continue to expand. This page cites 1 published reference for further reading.
Researchers studying cathelicidin antimicrobial biology, laboratories investigating biofilm disruption mechanisms, and institutions exploring innate immune peptide pharmacology.
This peptide is supplied as a lyophilized (freeze-dried) powder. Bacteriostatic water is required to reconstitute it before use and is not included with this product. Store lyophilized (powder) form at room temperature or refrigerated. After reconstitution, store refrigerated (2-8°C) and use within 30 days.
MyPeptide is a Canadian supplier of research peptides based in Mississauga, Ontario. LL-37 is stocked domestically and ships to research customers nationwide — including Toronto, Vancouver, Calgary, Edmonton, Ottawa, and Montreal. Every order includes third-party Certificate of Analysis documentation for the batch shipped.
Yes. LL-37 ships from within Canada to every province and territory, with fast domestic delivery and no international customs delays. Orders are dispatched with tracking, and all products are sold strictly for laboratory and research use only.