1,000 mg NAC (N-Acetyl Cysteine) 120 Tablets by Now Foods

What the brand says

Reinforced Cell Protection: NOW Foods NAC 1,000 mg delivers a high dose of N-Acetyl Cysteine, a direct precursor of glutathione, one of the body's most potent antioxidants. It promotes liver detoxification, strengthens immune function and fights oxidative stress at the cellular level. It is ideal for people exposed to toxins, pollutants or demanding lifestyles. Regular use also contributes to respiratory health and overall well-being. Free of gluten, dairy and artificial preservatives.