One of our products smells like rotten eggs?! , Its actually because of an ingredient called Glutathione, which naturally contains Sulfur. , But dont let the smell fool you this ingredient will Glutathione Serum 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 Positive Benefits of Glutathione Healthy Directions Grace and Glow Bright & Smooth Deodorant Serum with Niacinamide and AH D Nelson Enterprises Liposomal Glutathione Pure Reduced L Glutathione Anti Aging Skin Whitening Detox