Understanding Glutathione: How to Choose the Best Form for Your Health Village Green Apothecary Is reduced glutathione worth taking? Amazon.com: Glutathione Supplement 1,000mg Per Serving, 98% Purity Plus Vitamin C 500mg, Active Reduced Form (GSH) Intracellular Antioxidant Supports Detoxification & Immune Health : Health & Household Glutathione acts as an important antioxidant in your body. This means it helps combat free radicals aka molecules that can damage your body's cells. Glutathione levels in the body may be reduced Difference Between Reduced Glutathione and Oxidized Glutathione