IGF-1 LR3 (Long Arginine 3-IGF-1) is a recombinant analogue of insulin-like growth factor-1 engineered with an extended N-terminus that reduces binding to IGF-binding proteins, studied in growth research. It is supplied as a high-purity white lyophilized powder at >=99% HPLC purity in sealed vials. IGF-1 LR3 is investigated in research on protein synthesis, cell growth and anabolic signaling, and is commonly applied in cell-culture and preclinical studies. The lyophilized format provides stable reconstitution and consistent dosing. The Long R3 analog reduced insulin-like-growth-factor-binding-protein affinity leads to prolonged receptor activation, and researchers study its effects on myoblast proliferation, differentiation and protein synthesis. It is frequently compared with native and truncated variants. The product is lyophilized in sealed vials with HPLC purity data. The analog is widely paired with growth-hormone-related peptides in protocols designed to explore anabolic signaling, and its prolonged receptor engagement is a central point of comparison in growth-factor research. The product is verified for peptide content and purity, and reconstitution guidance is provided to support consistent cell-based assays. Each production lot is tracked from synthesis through lyophilization and final testing, ensuring consistent quality across batches. Product specifications, storage conditions and reconstitution recommendations are provided with every shipment, and our sales team responds promptly to technical inquiries. Long-term supply arrangements are possible for frequent buyers. For detailed specifications, quotations or technical support, please contact our sales team directly. WhatsApp: +852 4423 6619, contact person: Aurora, Email: 18963519387@163.com. We reply to all inquiries promptly and are glad to provide batch information and shipping options. YIWU SHUNXIAN TRADING CO., LTD. is a professional supplier of high-purity research-grade peptides and matching laboratory consumables, dedicated to supporting global research teams for biochemical and life-science studies. We bridge qualified peptide raw-material resources with stable international logistics service, offering researchers and industry partners a dependable source for their laboratory development projects.