LL-37
Also known as: cathelicidin, cap-18, ll37, hCAP18/LL-37, Human Cathelicidin Antimicrobial Peptide
LL-37 is the active form of the human cathelicidin antimicrobial peptide, a 37-amino-acid peptide encoded by the CAMP gene.
Caliber Peptide Index tracks LL-37 across 23 research-peptide vendors, with the lowest listed price at $4.00/mg (10mg) at Eliteresearchlab as of 2026-06-03. Prices below are normalized to dollars per milligram so different vial sizes can be compared on an equal basis. LL-37 is sold by third-party vendors for research use only.
Research Applications
Studied in research on innate-immune antimicrobial peptides.
Safety Considerations
Not an approved human therapeutic. Sold as a research chemical for laboratory use only — not for human consumption.
Sources
Available From 23 Vendors — Sorted by $/mg
Browse other peptides
Frequently asked
- How many vendors sell LL-37?
- Caliber Peptide Index currently tracks 23 research peptide vendors listing LL-37.
- What is the lowest tracked price for LL-37?
- The lowest tracked price for LL-37 is $4.00/mg (10mg) at Eliteresearchlab. Prices are sorted by dollars per milligram so different vial sizes can be compared on an equal basis.
- How often are LL-37 prices updated?
- Vendor prices are refreshed by our automated scraper (most recent update: 2026-06-03). Always confirm the current price on the vendor's site before purchase.
Caliber Peptide Index is a directory. We do not test, score, or endorse any vendor. Prices listed are what each vendor publishes; verify on the vendor's site before purchase.
Products listed for research purposes only — not for human consumption. Wiki content is summarized from publicly available research literature and is not medical advice.