All products are produced using lyophilization (freeze-drying), a preservation method that allows peptides to remain fully stable during shipping for approximately 3-4 months. Once a peptide has been reconstituted with bacteriostatic water, it must be refrigerated to maintain integrity. After reconstitution, peptides typically remain stable for up to 30 days when stored properly.
Lyophilization, also referred to as cryodesiccation, is a specialized dehydration process in which peptides are first frozen and then exposed to a low-pressure environment. This causes the water within the vial to transition directly from a solid to a vapor (sublimation), leaving behind a dry, crystalline white material known as a lyophilized peptide. In this powdered form, peptides may be safely stored at room temperature until they are ready to be reconstituted with bacteriostatic water.
After delivery, peptides should be protected from heat and light. If use is expected within the near future (whether days, weeks, or a few months) refrigerated storage below 4°C (39°F) is generally sufficient. Lyophilized peptides are commonly stable at room temperature for several weeks or longer, making short-term ambient storage acceptable when use is anticipated within that timeframe.
For extended storage, ranging from several months to multiple years, freezing is strongly recommended. Storage at -80°C (-112°F) offers optimal long-term stability and helps preserve peptide structure and quality over time.
For more detailed guidance on peptide handling and storage best practices, please refer to the resource below:
LL-37 (5mg) is a synthetic antimicrobial peptide derived from the human cathelicidin peptide family. In laboratory environments, LL-37 has been studied for its role in innate immune signaling, cellular defense mechanisms, and microbial response pathways. This compound is supplied strictly for controlled laboratory research applications focused on immune system biology and host defense signaling networks.
Antimicrobial peptides represent an important component of the innate immune system. These molecules are naturally produced by epithelial tissues and immune cells and participate in the body's first-line defense mechanisms against microbial challenges. Researchers frequently investigate LL-37 because of its ability to interact with immune signaling pathways and cellular communication systems involved in inflammatory and microbial response processes.
LL-37 (5mg) – Research Specifications:
| Compound | LL-37 (Human Cathelicidin Antimicrobial Peptide) |
| Quantity | 5mg per vial |
| Compound Type | Antimicrobial peptide studied for immune signaling |
| Purity / Identity | Research-grade; refer to Certificate of Analysis (COA) for lot-specific analytical verification |
| Appearance | Lyophilized peptide powder |
| Storage Conditions | Store sealed in a cool, dry environment protected from heat, light, and moisture |
| Research Use Only | Supplied exclusively for laboratory research use. Not for human consumption. |
LL-37 is the only human member of the cathelicidin antimicrobial peptide family and is produced through cleavage of the precursor protein hCAP18. It is naturally expressed by epithelial cells, neutrophils, and other immune-related cell types. Because of its role in host defense, LL-37 has become a significant subject of investigation within immunology and molecular biology research.
In laboratory models, LL-37 has been studied for its interaction with microbial membranes and its ability to influence immune signaling pathways. Beyond direct antimicrobial interactions, research has explored how LL-37 may influence inflammatory signaling cascades, cellular migration pathways, and immune communication networks.
Studies involving LL-37 frequently intersect with broader research programs examining innate immune responses, epithelial barrier function, and host defense signaling pathways. These investigations help researchers understand how peptide-based signaling molecules participate in immune system coordination and protective biological responses.
Important Research Notice: Nordsci research materials are supported by lot-specific analytical documentation. Certificates of Analysis are available for laboratories requiring verification of compound identity and analytical quality standards.
THIS PRODUCT IS INTENDED FOR LABORATORY RESEARCH USE ONLY. NOT FOR HUMAN CONSUMPTION. NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE OR CONDITION.
The innate immune system provides immediate protection against microbial challenges through cellular and molecular defense mechanisms. Laboratory studies may investigate how antimicrobial peptides such as LL-37 participate in immune signaling pathways.
Host defense peptides interact with microbial structures and influence immune signaling cascades. Experimental research programs may explore how LL-37 interacts with microbial membranes and cellular response systems.
Immune responses often involve inflammatory signaling pathways that coordinate protective biological reactions. Researchers may examine how antimicrobial peptides influence cytokine signaling networks and inflammatory response pathways.
Epithelial tissues serve as physical and biochemical barriers against environmental pathogens. Laboratory investigations may evaluate how peptides such as LL-37 interact with epithelial cells and barrier defense mechanisms.
LL-37 (5mg) should be handled according to established laboratory procedures used for peptide research materials. Proper storage conditions, environmental controls, and documentation of experimental variables help support reliable and reproducible outcomes in immune signaling research programs.
Protocol Design Considerations: Immunology research experiments may be influenced by variables including microbial exposure conditions, inflammatory stimuli, cellular environment, and metabolic factors. Researchers should maintain strict experimental controls when designing studies involving antimicrobial peptides.
Note: The information above is provided strictly for laboratory research reference purposes. All experiments should be conducted by qualified personnel within appropriate laboratory environments.
Each lot of LL-37 supplied by Nordsci Peptides includes a Certificate of Analysis confirming compound identity and analytical purity verification. These reports support laboratory documentation standards and traceability requirements within controlled research programs.
Laboratories sourcing peptide compounds typically prioritize analytical transparency, batch traceability, and consistent manufacturing standards. Nordsci Peptides supplies research-grade peptide compounds supported by analytical verification designed to support reliable laboratory research workflows.
IMPORTANT: LL-37 (5mg) is supplied exclusively for laboratory research use. It is not approved for human consumption or therapeutic use. Researchers are responsible for ensuring compliance with all applicable institutional and regulatory guidelines governing research materials.
