LL-37 — Research Peptide

LL-37 is a research peptide compound supplied by PeakForce Labs for laboratory research applications. LL-37 is a human cathelicidin-derived antimicrobial peptide widely investigated in experimental models involving innate immune biology, host-defense mechanisms, membrane interactions, cellular signaling, and inflammatory-associated pathways.

Each unit is supplied as a lyophilized powder in a sealed glass vial and independently verified through rigorous third-party analytical testing and comprehensive heavy metal screening.

Product Specifications

Compound: LL-37

Research Classification: Human cathelicidin-derived antimicrobial peptide

Form: Lyophilized powder

Vial Configuration: [VIAL STRENGTH] supplied in 3mL glass vial

Purity: 99%+ verified via HPLC and mass spectrometry (See COAs)

Testing: Independent third-party verification protocol

Analytical Verification

Every batch of LL-37 undergoes comprehensive, multi-step analytical testing to ensure absolute reliability.

Identity Verification: Confirms that the peptide in the vial precisely matches the specified LL-37 target compound rather than an alternative substance.

Purity Quantification: Measures sample cleanliness by quantifying the percentage of target peptide relative to residual byproducts or impurities.

Net Peptide Content: Assures precise peptide content within each vial to maintain experimental accuracy and consistency.

Visual Appearance: Confirms physical consistency, verifying a clean, uniform, freeze-dried (lyophilized) powder state.

Mass Spectrometry / Molecular Weight: Evaluates molecular mass and related analytical characteristics to authenticate chemical composition.

Research Context

LL-37 is supplied exclusively for research investigation by qualified professionals. LL-37 is the primary human cathelicidin-derived antimicrobial peptide and has been extensively investigated in experimental models involving innate immune biology and host-defense-associated cellular processes.

Laboratory research involving LL-37 includes investigation of peptide interactions with microbial membranes, membrane-associated processes, and mechanisms associated with antimicrobial peptide activity. These experimental systems provide researchers with opportunities to characterize peptide-membrane interactions and related biochemical processes under controlled laboratory conditions.

LL-37 has also been investigated in cellular models involving inflammatory signaling, cytokine-associated pathways, chemotactic responses, cell migration, angiogenesis-associated processes, and interactions with components of the innate immune system.

Additional experimental research has examined LL-37 in epithelial, endothelial, and other cellular models, providing a framework for studying relationships between antimicrobial peptides, cellular communication, membrane biology, and host-defense-associated signaling.

LL-37 is intended solely for in vitro research and laboratory investigation by qualified personnel in appropriate research environments.

Reconstitution and Storage

Lyophilized storage: Store sealed in a cool, dry location away from direct light

Long-term storage: -20°C for maximum stability

Post-reconstitution: Once reconstituted for research purposes, store reconstituted material at 2-8°C and protect from light

Reconstituted use window: Within 60 days for optimal research integrity

Avoid: Repeated freeze-thaw cycles to preserve compound stability and structural integrity

Quality Assurance

PeakForce Labs maintains rigorous quality control standards across all research compounds. Our multi-layered QA protocol exceeds industry standards, providing researchers with verified, high-purity reference materials for laboratory applications:

• Independent third-party testing on every batch
• Heavy metal screening for trace contaminant analysis
• Full traceability and analytical consistency
• Batch-specific COAs
• Same-day shipping available for orders placed before daily 3PM CST cutoff

Terms of Sale

By purchasing this product, the buyer confirms and attests that:

• They are 21 years of age or older
• They are a qualified research professional, authorized research personnel, or research institution
• They accept full responsibility for proper handling, storage, and use of this material in accordance with all applicable regulations
• They will not use this material for human consumption, veterinary use, or any in vivo application

About PeakForce Labs

PeakForce Labs is a Houston, Texas-founded research compound supplier specializing in high-purity research reference materials for laboratory applications. Every batch undergoes independent third-party analytical verification and comprehensive heavy metal screening, providing the research community with rigorously tested, premium-quality materials.

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