Glutathione is a naturally occurring antioxidant tripeptide (L-gamma-glutamyl-L-cysteinyl-glycine) widely used in biochemical and cell-culture research. It is supplied as a high-purity lyophilized powder at >=99% HPLC purity in sealed vials. Glutathione is investigated in research on oxidative stress, cellular redox balance and detoxification pathways, and is commonly applied in cell-based and enzymatic assays. The lyophilized form provides high stability and easy reconstitution for consistent experimental dosing.. All batches undergo rigorous quality testing and batch-specific COA documentation can be provided on request. Store unopened vials sealed at 2-8 degree C, away from light and humidity; for longer preservation store at -20 degree C without repeated freeze-thaw cycles. Trial orders and bulk supply are supported, with OEM, private-label and secure neutral packaging available for global delivery. For research use only.