Peptide library · Immune / antimicrobial

LL-37

A natural antimicrobial peptide (a cathelicidin) that fights bacteria, supports wound healing, and helps break down biofilms.

Also goes by

Cathelicidin · hCAP-18 (C-terminal peptide)

Amino-acid sequence

Leu-Leu-Gly-Asp-Phe-Phe-Arg-Lys-Ser-Lys-Glu-Lys-Ile-Gly-Lys-Glu-Phe-Lys-Arg-Ile-Val-Gln-Arg-Ile-Lys-Asp-Phe-Leu-Arg-Asn-Leu-Val-Pro-Arg-Thr-Glu-Ser

Research-market price

~$9.43 /mg avg

observed range $7.02–$11.85/mg

Average across the research market as of 2026-07-19. Informational only — not a Blue Star price, and not an offer to sell.

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Educational information, not medical advice. Nothing here says this compound will treat, cure, or prevent anything. Talk to your physician.