ISHIN is FDA Approved Ishin Nuwhite isn't just effective it's safe and trusted. Backed by science and approved by the FDA, our S Acetyl Glutathione is generally recognized as safe (GRAS) for daily use. For faster effect, Amazon.com: Liposomal Glutathione Supplement 500mg Pure L Glutathione (GSH) Reduced Active Form, Made with Organic Whole Food, Non GMO Phospholipid Complex Antioxidant 120 Count : Health & Household Is this FDA approved? Absolutely! Nakka is FDA approved. It has undergone rigorous testing and evaluation to meet the safety and quality standards set by the Food and Drug Administration. This L Glutathione 500mg Capsules Liver Aid Antioxidant Immunity Support