LL-37 5mg Peptides
Advance your antimicrobial research with a peptide standard built for precision and consistency.
The LL-37 5mg lyophilized peptide vial from Peptide Scientific Labs provides a clean, dependable research material for laboratories studying host-defense peptides. This non-flavored, sealed powder format is designed for reliable handling and reproducible performance, featuring the human cathelicidin peptide (LL-37) at a total content of 5mg per vial.
- Each vial contains 5mg of Cathelicidin LL-37, a cationic antimicrobial peptide studied for broad-spectrum activity, membrane interactions, and innate immune signaling.
Prepared as a lyophilized powder, this peptide supports streamlined laboratory workflows. Researchers value LL-37 for its well-characterized sequence and its relevance in antimicrobial mechanism exploration, biofilm interface studies, and host-pathogen interaction models. The vialized format helps maintain compound integrity from receipt to use, enabling precise aliquoting and controlled experimental setup.
In non-edible applications, LL-37 is commonly evaluated in in vitro systems to investigate bacterial, fungal, and viral interface behaviors, peptide-membrane dynamics, and cytokine-related pathways. The 5mg presentation is suitable for method development, assay validation, and comparative studies where consistency and clear documentation are essential. Whether used in microbiology, cell culture, or materials testing contexts, this preparation is intended to deliver reliable, repeatable performance aligned with research objectives.
Peptide Scientific Labs is a USA-based provider focused on quality manufacturing, careful handling, and rigorous standards. Each lot is produced under controlled processes and assessed for identity and purity using validated analytical methods. Batches are documented to support traceability and consistency, and packaging is selected to protect the peptide throughout storage and typical laboratory use. Our team emphasizes clarity and transparency so researchers can work with confidence.
Research Use Only: This peptide is furnished exclusively for laboratory research. It is not intended for human or animal use, and not for diagnostic, therapeutic, or veterinary applications. Handle with appropriate laboratory practices, follow institutional guidelines, and consult the lot documentation for details relevant to your methods. With Peptide Scientific Labs, you can expect disciplined sourcing, rigorous testing, and materials that reflect a commitment to purity, consistency, and scientific integrity.
- Most orders ship within 24 hours and arrive within 3 to 5 days of leaving our warehouse.
- Shipping is free on orders of $99+ (except Hawaii and Alaska).
- All orders ship in discreet packaging via USPS Ground Advantage mail.
Delivery restrictions vary by state.
This Product Contains
Customer Reviews
There are no reviews yet. Be the first to write a review!
Frequently Asked Questions
What is LL-37 typically studied for?
Researchers usually study LL-37 for innate immunity, antimicrobial activity, biofilm-related questions, inflammatory signaling, and wound-environment biology. Because it sits at the intersection of immunity and tissue repair, it often appears in experimental discussions of both infection control and healing pathways.
How do antimicrobial peptides differ from antibiotics?
Classical antibiotics are usually small-molecule compounds — many derived from microbial secondary metabolites — that act on specific bacterial targets such as cell wall synthesis, ribosomes, or DNA replication. Antimicrobial peptides, by contrast, are short amino acid chains produced as part of the innate immune response, and their primary research-studied mechanism typically involves direct interaction with microbial membranes rather than a single enzymatic target.
Because AMPs often act on membrane structure rather than one discrete protein, they have been of research interest in the context of membrane biophysics and resistance evolution. This makes them a distinct class of study from conventional antibiotics, even when the two are sometimes grouped together in broader antimicrobial research literature.
Where do antimicrobial peptides occur naturally?
Antimicrobial peptides are found across essentially every branch of life. In mammals, well-studied examples include cathelicidins (such as LL-37) and defensins, which are expressed in skin, mucosal surfaces, neutrophils, and epithelial tissues. In amphibians, insects, and plants, AMPs form a major part of innate immunity and are secreted in skin, hemolymph, seeds, and other tissues.
This broad distribution across kingdoms is one reason AMPs are a significant subject of biological research — they represent a conserved, ancient strategy for host defense. Peptide Scientific Labs supplies synthetic AMP reference compounds for in vitro research use only.
What are antimicrobial peptides?
Antimicrobial peptides (AMPs) are short, naturally occurring chains of amino acids that act as part of the innate immune defense in virtually all living organisms — from bacteria and plants to insects, amphibians, and mammals. They are typically between 10 and 50 amino acids long and often carry a net positive charge, which allows them to interact with negatively charged microbial membranes.
In research, AMPs are studied as a broad and evolutionarily ancient class of host defense molecules. They are investigated in the context of innate immunity, membrane biology, structure–activity relationships, and microbial resistance. All AMPs offered by Peptide Scientific Labs are intended strictly for in vitro laboratory research and are not drugs, supplements, or therapeutics.
