Glutathione Santa Monica Glutathione, a key antioxidant, is sensitive to the acidic environment of the stomach, where it can degrade and limit oral absorption., While it does not directly cause increased acidity or acid Glutathione as a skin whitening agent: Facts, myths, evidence and controversies Indian Journal of Dermatology, Venereology and Leprology What is glutathione and why must we protect patient access to it?