Effect of N Acetylcysteine on Sleep: Impacts of Sex and Time of Day N acetyl L Cysteine Should You Be Taking NAC? The Antioxidant Powerhouse for Detox and Lon N Acetyl Cysteine (NAC) is a powerful antioxidant that supports the body's natural detoxification and anti inflammatory pathways. It works primarily by increasing glutathione, one of the body's most important protective molecules against oxidative