NAC Liposomal provides antioxidants. NAC (N-Acetyl-L-Cysteine) is known as a mucolytic agent. It’s also a precursor to glutathione – a critical antioxidant for immune, liver and brain health. Glutathione helps scavenge free radicals and protect our cells from damage. NAC is also ideal for individuals who want protection against oxidative stress caused by respiratory conditions.