Natural Factors N-Acetyl-L-Cysteine 600 mg

What the brand says

Sold as “Natural Factors N-Acetyl-L-Cysteine 600 mg - Supports Healthy Liver & Lungs - Antioxidant Support Supplement Supports Immune System Health - 60 Vegetarian Capsules (60 Servings)”

N-Acetyl-L- Cysteine (NAC) is a highly stable form of cysteine and is a precursor in the body to the critical antioxidant glutathione. It provides antioxidant support and helps to promote healthy immune system function. Natural Factors amino acids are the highest quality pharmaceutical grade products available.