The glutathione cycle shapes synaptic glutamate activity PNAS 9 Health Benefits of Glutathione 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 Arabidopsis mutants impaired in glutathione biosynthesis exhibit higher sensitivity towards the glucosinolate hydrolysis product allyl isothiocyanate Scientific Reports