What is Glutathione? Is this skincare ingredient beneficial? Skincare Smells Like Rotten Eggs?!! YouTube Role of Insect and Mammal Glutathione Transferases in Chemoperception Amazon.com: KisoCare Glutathione Serum 20,000 ppm Clear + Radiant Complexion Niacinamide, Panthenol, Vitamin C Note: Natural Sulfur Scent : Beauty & Personal Care Why does glutathione smell like sulfur? Dr. Nayan Patel shares that glutathione's sulfur smell comes from its powerful detox properties. Sulfur helps your body flush out toxins, which is why Gotta love it Faded gets its smell from Glutathione, an ingredient that is really effective at reducing the appearance of discoloration in weeks.