Best LL-37 suppliers
Looking for a trustworthy source of LL-37? The companies below are ranked best-first by real, verified buyer reviews — never by advertising. Compare purity, certificates of analysis (COA), shipping regions and payment methods, then choose with confidence.
What is LL-37?
LL-37 is a human cathelicidin antimicrobial peptide and part of the innate immune system.
In the research literature, LL-37 is most commonly studied for antimicrobial and immune research.
For laboratory and research use only. This is general educational information, not medical advice, and is not a claim about safety or efficacy in humans.
Peptivex Labs
✓ Verified
Pure Tested Peptides
✓ Verified
PeptideForgeLabs✓ Verified
Peptworld
✓ Verified
Peptides Direct
✓ Verified
Regena Peptides
✓ Verified
Pepticore Aminos
✓ Verified
Edge Peptides✓ Verified
Uther Peptide✓ Verified
Cellpept Research✗ Not verified
24Peptides
✓ Verified
Bluewell Peptides✗ Not verified
Verified Peptides✗ Not verified
Pharma Lab Global Europe✗ Not verified
Nextday Peptides✗ Not verified
Liberty Peptides✗ Not verified
Paramount Peptides✗ Not verified
Peps In Bulk✓ Verified
LynxLabs
✗ Not verified
Yiwu Dongfeng Peptide Industry Co., Ltd.✗ Not verified
Oasis Labs✗ Not verified
Regena peptides✓ Verified
APEX PEPTIDES✗ Not verified
Sigma Compounds✗ Not verified
Ageless Bio Labs✗ Not verified
Buying LL-37 safely
Always ask for a batch-specific Certificate of Analysis (COA) covering purity (HPLC) and identity (mass spec), and favour suppliers with independent, third-party testing and transparent shipping and return policies. Research peptides may be regulated where you live — you are responsible for complying with local laws.