N-Acetyl Cysteine 600mg 100ct by Vital NutrientsN ACETYL CYSTEINE maintains the proper functioning of the lungs and supports the immune system and liver function. NAC is also a powerful antioxidant. It maintains and supports normal physiologic levels of mucus in the sinus and respiratory system of healthy individuals. NAC increases levels of glutathione in the body and maintains healthy lung and liver function. promotes normal mucus levels in healthy sinus and respiratory systems provides immune