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HomePeptidesKLOW vs LL-37

KLOW vs LL-37

Which should you choose? Here's what you need to know.

The short answer

KLOW and LL-37 are both immune / inflammation peptides, but they work differently. A multi-peptide blend sold for gut and immune support. Composition varies between vendors — check the COA before comparing prices. The only human cathelicidin antimicrobial peptide. Plays a key role in innate immune defense against bacterial, viral, and fungal infections. Compare vendor pricing and availability below.

KLOW

Immune / Inflammation

A multi-peptide blend sold for gut and immune support. Composition varies between vendors — check the COA before comparing prices.

LL-37

Immune / Inflammation

The only human cathelicidin antimicrobial peptide. Plays a key role in innate immune defense against bacterial, viral, and fungal infections.

Price & availability

Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.

KLOW
LL-37
$70.00
Starting from
$38.00
$3.36
Avg. price per mg
$16.12
24
Vendors selling it
36
22 options
In stock now
35 options
9.0/10
Top trust score
9.0/10

Ready to buy?

Our top-rated vendor for each, based on trust scores, purity testing, and price.

Best KLOW Vendor

Amino Sequence
Amino Sequence
7.8/10

$85.00(80mg)

Check Price

Best LL-37 Vendor

Simple Peptide
Simple Peptide
7.0/10

$54.00(10mg)

Check Price
See all KLOW vendorsSee all LL-37 vendors

Where does this data come from?

We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.