Should You Take Glutathione? If a serum smells bad it usually means it works., This glutathione serum smells like rotten eggs and thats your first clue its highly concentrated. Glutathione is known for targeting Glutathione and Side Effects: What You Need to Know for Better Health Performance Lab Does Glutathione Smell Bad? Understanding the Master Antioxidant Cymbiotika CYMBIOTIKA 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