Mast cells are hypersensitive immune cells that release histamine and other inflammatory mediatorsoften in response to oxidative stress, environmental toxins, and immune imbalance. Many patients with MCAS have low levels of glutathione. Californians push back against proposed restrictions on glutathione and other alternative treatments What is MCAS? Aspen Integrative Medical Center Glutathione MCCM Medical Cosmetics Glutathione conjugates of the mercapturic acid pathway and guanine adduct as biomarkers of exposure to CEES, a sulfur mustard analog Analytical and Bioanalytical Chemistry Springer Nature Link