Detox from the Inside Out with Glutathione IV Therapy Glutathione is such an important antioxidant in human physiology, meaning it acts to combat oxidative stress. Strategies for increasing glutathione include: Consume sulfur rich foods like cruciferous vegetables Ensure you get Glutathione, Reduced, Free Acid Before and After Glutathione: How This Antioxidant Affects Skin, Aging Performance Lab