LL-37 is a cationic antimicrobial peptide belonging to the cathelicidin family, the only human cathelicidin, widely studied in innate immunity and host-defense research. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. LL-37 is investigated for its antimicrobial, immunomodulatory and wound-healing properties, and is commonly applied in cell-culture, infection and inflammation research. As a host-defense peptide with a defined sequence, it does not carry a single unified CAS number. The lyophilized presentation provides good stability and reproducible reconstitution for consistent dosing. Strict batch quality control is maintained and COA can be provided on request. For storage keep sealed at 2-8 degree C away from light and moisture. LL-37 is a host-defense peptide studied for both antimicrobial and immunomodulatory activity, so experiments often combine bactericidal and membrane-interaction readouts with immune-cell responses, and its 37-residue sequence keeps synthesis reproducible. Cytotoxicity is usually assessed in parallel to separate direct effects. The lyophilized material reconstitutes in physiological buffer, and our records verify purity per lot. Trial and bulk quantities are available for infection and immunology programs. LL-37 ships with its purity record and a reconstitution guide, and the powder is packed to preserve activity through transit. For labs running antimicrobial and immune panels side by side, we can coordinate one order covering both readout sets, with per-vial documentation that keeps each experiment traceable. Customer-focused service is our priority: transparent pricing, careful quality checks before release, safe packaging and dependable international shipping to the USA, Europe, Canada, Australia, the UK and beyond. Contact us for a quotation tailored to your research needs. For product documentation, quotations or order arrangements, reach us anytime: WhatsApp +852 4423 6619, contact person Aurora, email 18963519387@163.com. YIWU SHUNXIAN TRADING CO., LTD. stands as a beacon of precision and reliability in the field of scientific research, emerging as a premier supplier of high-purity research-grade peptides and an extensive range of meticulously crafted laboratory consumables. Each peptide - a chain of amino acids refined to perfection - is delivered with crystalline clarity, a testament to its exceptional purity. This ensures that global research teams, whether based in bustling urban laboratories or serene academic institutions, can trust in the integrity of their biochemical and life science studies. In these collaborative spaces, the air hums with the quiet intensity of discovery as scientists lean over microscopes, their eyes alight with curiosity, handling vials of these molecular building blocks. The accompanying laboratory consumables - from sterile pipette tips that glint like tiny glass stars to centrifuge tubes engineered for unwavering stability - are more than mere tools; they are silent partners in the pursuit of knowledge, enabling experiments to unfold with seamless precision. Dedicated to supporting this global tapestry of innovation, YIWU SHUNXIAN TRADING CO., LTD. weaves itself into the fabric of scientific progress, providing the foundational elements that transform hypotheses into breakthroughs and dreams into discoveries, fostering a world where the boundaries of life sciences are continuously pushed forward. We bridge qualified peptide raw-material resources with stable international logistics services, offering researchers and industry partners a dependable source for their laboratory development projects.