If a serum smells bad it usually means it works. This glutathione serum smells like rotten eggs and that's your first clue it's highly concentrated. Glutathione is known for targeting hyperpigmentation, 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 Methanethiol: A Scent Mark of Dysregulated Sulfur Metabolism in Cancer IGF 1 LR3 Kallista Labs Working with IGF 1 pathways and looking for more consistent results? IGF 1 LR3 is often used in research because of its added stability, helping maintain more reliable interactions in controlled models, whether