Glutathione is a naturally occurring tripeptide (gamma-Glu-Cys-Gly) that serves as the primary intracellular antioxidant, maintaining redox balance and detoxifying reactive species in cellular research. Its central role in oxidative-stress biology makes it a staple in metabolism and aging studies. The material is supplied as a white lyophilized powder at >=99% HPLC purity in a sealed vial. Bulk pricing, quality documentation and global shipping are available. Samples for quality evaluation can be arranged for serious buyers, with sample cost credited against the first bulk order in most cases. Our pricing structure supports both small laboratory orders and large wholesale contracts, and payment options include major transfer and trade platforms.