Wholesale-first · factory-direct pricing · Bulk & custom-volume discountsFor laboratory research use only. Not for human or animal consumption.
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LL-37

Research Peptide | Lyophilized Powder | Batch Tested

Tested for
WeightEndotoxinIdentityPurity
Size
$95.00
Best Value
$1.90/mg
In Stock
1

For laboratory research use only. Not for human or animal consumption. Insulated shipping · Styrofoam box available.

Product Overview

LL-37 is the only member of the cathelicidin family of antimicrobial peptides found in humans and a key effector of the innate immune system. Beyond directly disrupting microbial membranes, it acts as a signaling molecule that shapes inflammation, wound healing and immune-cell recruitment.

LL-37LL375
Batch No. W1ZSURFOELC5 · QC-2026-GKH9KLTMDW · Tested Jun 3, 2026

Laboratory: Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group)

Test results for batch W1ZSURFOELC5
Test results for batch W1ZSURFOELC5
TestResult
AppearanceVisualWhite loose powderPass
Mass spectrumMS4492.5 DaPass
PurityHPLC99.6 %Pass
Peptide contentHPLC92.9 %Pass
Actual fillGravimetric5.99 mgPass
Water contentKarl Fischer5.1 %Pass
Bacterial endotoxinsLAL (gel-clot)<3 EU/mgPass

SKU & packaging

SKUPer vialVials per packPack price
LL3755 mg10$95.00

Nominal sizes describe the product label; measured results are listed in each batch report. Published reports do not confirm the batch allocated to a future order.

Product & documentation questions

How do I read the size and pack quantity?

The per-vial size and number of vials per pack are listed separately in the table. The displayed price is for one pack. A blend’s stated size can describe combined ingredients; check its product label and report for individual components.

How do I find the matching COA?

Match the product, SKU and batch number with the published report. Open the batch page to read the actual results, original report and laboratory verification link. Ask support to confirm the allocated batch if it is not on your order.

Does a purity result mean every test passed?

No. Identity, purity, fill and endotoxin are separate measurements. Read each reported result and unit. An absent result is not a pass, and a less-than result is not zero.

Research Information

LL-37 is used to study direct antimicrobial activity against bacteria, fungi and viruses, as well as immunomodulation, chemotaxis and angiogenesis in wound-healing models. Research examines its interactions with microbial membranes and with host immune and epithelial cells, and how its concentration determines protective versus pro-inflammatory effects in vitro. Supplied strictly for in-vitro and laboratory research use only — not for human or animal consumption.

Learn more

Read research overviews, COA verification guides, and reconstitution notes in our Knowledge Hub.

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