Glucagon is a 29-amino-acid polypeptide hormone secreted by pancreatic alpha cells that raises blood glucose by stimulating hepatic glycogenolysis and gluconeogenesis, counterbalancing insulin action. In research, it is used to model glucose counter-regulation, hepatic metabolism and receptor signaling at the glucagon receptor. The product is a white lyophilized powder at >=99% HPLC purity in a sealed vial, stable under recommended storage. We provide complete lot documentation and flexible pack sizes from gram-scale research quantities to bulk supply. Stock is maintained for the most requested products to shorten lead times, and made-to-order items are typically produced within days. We support bank transfer, major digital payments and verified trade channels, with order updates provided at every shipping stage. Protective secondary packaging is standard for international parcels.