Where can researchers buy LL-37 peptide?

LL-37 is available for sale directly from this Real Peptides catalog page as a 5mg vial. Real Peptides is a US-based research chemical supplier that stocks and ships domestically from its Florida and California facilities. Buyers confirm at checkout that they are 21 or older and are purchasing the material for laboratory research use only.

Is this LL-37 lab tested by a third party?

Yes. Every LL-37 batch is submitted to an independent analytical laboratory that verifies identity and purity before the lot is released for sale. Results are not summarized internally alone; the full certificate of analysis for the lot in stock is published so researchers can review the actual testing data rather than a marketing claim.

Where is the LL-37 COA published?

The certificate of analysis for LL-37 is posted on the Real Peptides Lab Results section, organized by compound and lot number. The document for the lot currently shipping is available before purchase, so a laboratory can match the lot printed on the vial label to the published analytical report on file.

What size and format of LL-37 is supplied?

This listing supplies LL-37 as a lyophilized powder in a sealed 5mg multi-dose vial, finished in the USA. No other quantities or presentations are offered on this page. The vial contains the peptide only, with no added active compounds, so laboratories control reconstitution and handling under their own protocols.

What is LL-37 used for in research settings?

Laboratories use LL-37 in vitro as a reference host-defense peptide for antimicrobial and biofilm assays, membrane-interaction studies, innate-immunity receptor and signaling work, and epithelial models such as scratch-wound cell migration. All applications are non-clinical bench research; the material is not a drug, supplement, or cosmetic and is not for human or animal use.

How quickly do LL-37 orders ship?

Orders placed for LL-37 are processed and dispatched within 24 hours from the Florida or California warehouse, whichever is closer to the destination, on business days. Because stock is held in the United States, transit times are domestic and no import handling is involved. Tracking information is issued once the parcel leaves the facility.

How should LL-37 be stored on arrival?

Standard laboratory practice for lyophilized peptides applies: keep the sealed vial cold, dry, and protected from light, using freezer storage for long-term holding and refrigeration for short-term work. Reconstituted material is generally kept refrigerated and used within a short window. The published certificate of analysis lists the handling conditions recorded for the lot.

Is any credential required to purchase LL-37?

No institutional affiliation or professional license is required. Real Peptides is a chemical supplier, not a compounding pharmacy, and buyers simply confirm they are 21 or older and are acquiring LL-37 for laboratory research purposes. The material must not be used for diagnosis, treatment, or any human or veterinary application.

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Verified Lab Results

Finished in the USA

Research Use Only

Immunological Peptides · Gastrointestinal & Epithelial Research

LL-37 Peptide (5mg) for Laboratory Research

~~$76.80~~$38.40Save 50%

LL-37 is a 37-amino-acid cationic host-defense (antimicrobial) peptide, the mature C-terminal fragment of human cathelicidin hCAP18, used in vitro as a reference compound in innate-immunity signaling, microbial-killing, biofilm, and epithelial wound-model research. It is studied by laboratories as a peptide standard rather than as a therapeutic agent.

Real Peptides supplies LL-37 as a lyophilized 5mg multi-dose vial. Every batch is tested by an independent analytical laboratory for identity and purity, and the certificate of analysis for the current lot is published on the Lab Results pages so it can be reviewed before purchase. Orders ship from the company's Florida and California facilities within 24 hours. Sold strictly for laboratory research use, not for human or animal consumption.

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$38.40

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LL-37 · 5mg

$38.40$76.80

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For Research Use Only. Not for human consumption or therapeutic treatment.

99% Pure | Multi Dose | Finished in the USA

LL-37 is a human-derived antimicrobial peptide trusted by labs to model innate-immunity, antimicrobial defense, and wound-healing processes. Each 5 mg vial delivers a ready-to-use peptide that boosts microbial-killing assays, supports cell-migration in scratch-wound models, and activates innate-immune signaling—with no extra compounds or guesswork. HPLC-verified to ≥ 99% purity, and endotoxin-screened (< 0.1 EU/mg), LL-37 gives you crisp, reproducible data every time.

What Is LL-37 Peptide?

LL-37 is a naturally occurring, 37-amino-acid antimicrobial peptide (cathelicidin) that plays a key role in the body’s first line of defense. In research, LL-37 peptide is used to explore microbial killing, wound-closure mechanisms, and innate immune signaling, giving scientists a direct tool to study host-pathogen interactions and tissue repair.

Why Choose LL-37?

Unlike generic antimicrobial reagents, LL-37 combines broad-spectrum bacterial activity with tissue-repair support in one molecule. Its balanced profile—effective against planktonic bacteria and biofilms, yet supportive of keratinocyte/fibroblast migration—makes LL-37 the go-to peptide for integrated infection and healing research.

What Sets LL-37 Apart?

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