N-Acetyl-L-Cysteine (NAC) by Designs for Health is a dietary supplement that serves as a precursor to glutathione, the body’s most powerful antioxidant. By promoting optimal detoxification processes, NAC supports liver health and aids in the elimination of toxins. Additionally, it contributes to lung health by maintaining healthy mucus viscosity and supports muscle recovery following exercise. NAC is also beneficial for protection against normal exposure to heavy metals.