Supplement with N-Acetyl-L-Cysteine to promote healthy glutathione levels. Life Extension N-ACETYL CYSTEINE 600 MG 60 VEGETARIAN CAPSULES Part Number:LEX-1534 Description Additional Images Overview What Is N-Acetyl-L-Cysteine? As a dietary supplement, N-acetyl-L-cysteine supports comprehensive health in a variety of ways, including promoting normal liver function. NAC is a powerful antioxidant that protects cells from oxidative stress. N-Acetyl-L-Cysteine Benefits Powerful antioxidant Promotes healthy glutathione levels Encourages liver health function Fight Back Against Oxidizing Free-Radicals N-acetyl-L-cysteine is a powerful antioxidant that protects your cells from oxidative stress.