About This Item Pure Encapsulations NAC 900 mg delivers a clinically meaningful dose of N-acetyl-L-cysteine (NAC), a precursor to glutathione — the body’s master antioxidant. NAC plays a critical role in supporting cellular defense, detoxification pathways, and respiratory mucus clearance. This formula is hypoallergenic, free from unnecessary additives, and designed for patients who need targeted antioxidant and liver support Ingredients N-Acetyl-L-Cysteine (NAC, free-form, Vegetarian capsule (cellulose, water), Ascorbyl palmitate Why We Chose This Many individuals today face chronic oxidative stress, toxin exposure, and depleted glutathione levels due to pollution, medications, stress, and metabolic demands. NAC directly replenishes glutathione stores and supports detoxification and respiratory function — addressing the root biochemical imbalance rather than masking symptoms. We chose this product because it delivers a high-dose, research-supported form of NAC in a clean, practitioner-grade formulation, aligning with our values of precision dosing, purity, and science-backed care