How to Take Glutathione Effectively: Best Forms, Timing & Tips What is glutathione and why must we protect patient access to it? Reduction of plasma glutathione in psychosis associated with schizophrenia and bipolar disorder in translational psychiatry Translational Psychiatry Glutathione, a naturally occurring antioxidant, plays a vital role in maintaining the integrity of skin cells by neutralizing free radicals that can cause oxidative stress. In the real world, this means that Changes in levels of the antioxidant glutathione in brain and blood across the age span of healthy adults: A systematic review ScienceDirect