glutathione merck The reduced glutathione Merck, G4251-500G, L-Glutathione reduced –
Description
Two vials out of thousands sold

Prohaska JR

It catalyzes the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) by hydrogen peroxide to form a blue-colored product (oxTMB) at near neutral pH values

No significant lab abnormalities reported in long-term users
