Glutathione with Cofactors Seeking Health 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 is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Why does Faded Serum smell? Glutathione! an ingredient thats super effective at reducing the appearance of discoloration in weeks Glutathione has a cysteine chain that causes it to have a sulfur