Faded gets its smell from glutathione, an ingredient thats super effective at reducing the appearance of discoloration in week Glutathione has a cysteine chain that causes it to have a sulfur like Replying to @The Real Skin Nook Glutathione has always had one very obvious problem the smell. That strong sulphur odour comes from the sulphur containing structure within the molecule itself. But Readisorb: The Stinkiest Antioxidant Your Body Craves Does Glutathione Smell Bad