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Myogenic Peptides · Performance & Recovery Research

LL-37

Q: What is LL-37 peptide used for in research?

To study antimicrobial defense, biofilm disruption, wound closure, and innate-immune signaling.

Q: How does LL-37 kill bacteria?

It binds and disrupts bacterial membranes, causing rapid cell lysis in culture assays.

Q: Can LL-37 promote wound healing?

Yes—LL-37 accelerates keratinocyte and fibroblast migration in scratch-wound models.

Q: What concentration is typical in vitro?

Researchers commonly use 1–10 µg/mL, adjusted per cell type and assay.

Q: Does LL-37 affect inflammation?

LL-37 modulates immune signals, reducing IL-1β and TNF-α in macrophage assays.

Q: How is LL-37 reconstituted?

Dissolve in Sterile Water for Injection, gently mix until clear, then use immediately or store at 2–8 °C.

Q: What storage conditions are required?

Store powder at – 20 °C; use reconstituted solution within 7 days at 2–8 °C.

Q: Can LL-37 disrupt biofilms?

Yes—it penetrates and disperses bacterial biofilms in static and flow-cell models.

Q: Is LL-37 approved for clinical use?

No—strictly for research use only, not for therapeutic or veterinary applications.

Q: Where can I buy LL-37 peptide?

Real Peptides offers, LL-37 (5 mg), ≥ 99% purity, and low endotoxin—available for research use only.

$64.00

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.

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Lab report included

LL-37 · 5mg

$64.00

Recommended with this order

Frequently paired with this compound by other researchers.

Bacteriostatic Reconstitution Water (BAC)$8.00

10ml

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

AboutLab reportSpecificationsQuestions

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?

What sets Retatrutide apart from traditional single-pathway compounds like semaglutide is its ability to address multiple metabolic pathways at once, making it highly attractive for advanced obesity, diabetes, and longevity studies.

Research observations

Antimicrobial Activity

LL-37 rapidly disrupts bacterial membranes in vitro, making it ideal for quantifying antimicrobial potency.

Wound-Healing Modeling

Promotes keratinocyte and fibroblast migration in scratch assays, providing a clear readout of tissue-repair dynamics.

Immune-Signaling Insights

Activates Toll-like receptor pathways and cytokine release in macrophage cultures, supporting innate-immunity studies.

Biofilm Disruption

Penetrates and breaks down bacterial biofilms in static-culture models, enabling advanced infection-control research.

Anti-Inflammatory Modulation

Downregulates pro-inflammatory markers (e.g., IL-1β, TNF-α) in immune-cell assays, modeling resolution phases.

Ready-to-Use Format

Lyophilized powder—reconstitute in sterile water, store at 2–8 °C, and use within 7 days for consistent activity.

Tested 22-Jul-2026

Kovera · 2 reports

1 earlier

CompoundLL-37

Research areaMyogenic Peptides, Performance & Recovery Research, Gastrointestinal Peptides, Immunological Peptides, Dermal & Follicular Peptides, Gastrointestinal & Epithelial Research, Growth Factor & Tissue Signaling Research

FormatLyophilised powder, sealed glass vial

Sizes5mg

Reconstituted shelf life30 days at 2–8°C

Independent laboratoryFreedom Diagnostics and Kovera

Lab reports on file2 reports

Ships fromSaint Petersburg, FL and California

DispatchWithin 24 hours

To study antimicrobial defense, biofilm disruption, wound closure, and innate-immune signaling.

It binds and disrupts bacterial membranes, causing rapid cell lysis in culture assays.

Yes—LL-37 accelerates keratinocyte and fibroblast migration in scratch-wound models.

Researchers commonly use 1–10 µg/mL, adjusted per cell type and assay.

LL-37 modulates immune signals, reducing IL-1β and TNF-α in macrophage assays.