Treatment of four siblings with progressive myoclonus epilepsy of the Unverricht Lundborg type with N acetylcysteine Neurology Everyone says NAC can make glutathione. Wrong. Evidence against this is staring right at you. As you can see here, my wife's GCLC gene is genetically slower. Thus, she cannot convert Cysteine Effect of N Acetylcysteine on Sleep: Impacts of Sex and Time of Day N Acetyl D cysteine