Glutathione: What It Is, Why You Need It, How You Can Increase It The Amino Company Ingredient Spotlight: Glutathione Amandean Glutathione is a powerful antioxidant naturally produced by your body. Made up of three amino acidsglutamine, cysteine, and glycineit plays a critical role in protecting cells from damage, Day 1 of 15: What Is Glutathione? If you've never heard of glutathione , buckle up. This might be the most important health series you follow all year. Glutathione is Glutamine supplementation reverses manganese neurotoxicity by eliciting the mitochondrial unfolded protein response ScienceDirect Glutamine drives glutathione synthesis and contributes to radiation sensitivity of A549 and H460 lung cancer cell lines ScienceDirect