LL-37 is a 37-amino-acid cationic peptide, the active fragment of the human cathelicidin protein, named for its two leading leucine residues. PubChem lists its molecular formula as C205H340N60O53, with a molecular weight of about 4493 g/mol. It is a widely referenced antimicrobial peptide in laboratory research.

KYVEC supplies LL-37 as a lyophilised (freeze-dried) powder in a sealed, labelled vial, packed in our signature KYVEC black box. Each label shows the product name and quantity, so stock can be logged and tracked in your lab inventory as soon as it arrives.

Storage and handling: Store unopened vials in a cool, dry place away from light. For long-term storage, refrigerate (2–8°C) or freeze (−20°C). Once reconstituted for laboratory use, keep refrigerated and avoid repeated freeze–thaw cycles. Handle with standard laboratory PPE.

Looking to buy LL-37 in Australia? KYVEC is Australian-owned, and every order ships from Brisbane with tracked dispatch and free shipping on orders over $250.

For laboratory research purposes only. Not for human consumption.