What LL-37 is
LL-37 is an antimicrobial host-defence peptide. The only human cathelicidin-derived antimicrobial peptide, studied for membrane disruption of microbes and for immunomodulatory signalling.
Class and mechanism
LL-37 is an antimicrobial host-defence peptide. The only human cathelicidin-derived antimicrobial peptide, studied for membrane disruption of microbes and for immunomodulatory signalling.
Where it sits
Research peptides are short amino-acid sequences supplied either as a lyophilised powder in a sealed vial or already in solution in a pre-filled pen. Which of the two you receive changes how the item is stored and how long it stays usable once opened.
Other names
LL-37 is also written as Cathelicidin LL-37. The same molecule appears under more than one name, which is worth knowing when comparing listings between suppliers.
Others in the research peptides range
LL-37 sits in the research peptides group. The compounds below share that grouping, which is the useful starting point when comparing one against another: same group means the comparison is like for like, different group usually means it is not.
| Compound | Class | Listings | From |
|---|---|---|---|
| BPC-157 | Pentadecapeptide | 2 | £16 |
| TB-500 | Thymosin beta-4 fragment | 2 | £25 |
| GHK-Cu | Copper tripeptide | 2 | £30 |
| KPV | Alpha-MSH tripeptide fragment | 1 | £20 |
| Thymosin Alpha-1 | Immunomodulatory peptide | 1 | £65 |
| Glutathione | Endogenous tripeptide antioxidant | 1 | £95 |
- SerenQ LL-37 6mg Peptide Penout of stock£60
Availability checked 2026-09-09. The product page carries live stock.