NAC is a precursor to the amino acid L-cysteine, which is critical for producing glutathione. Glutathione is known as the “master antioxidant” because of its role in protecting cells from damage, neutralizing free radicals, and detoxifying the body. While the body produces glutathione naturally, environmental stressors, toxins, poor diet, and aging can lead to decreased levels of this antioxidant. This is where NAC comes in—it helps the body replenish glutathione levels, making it essential for protecting and optimizing health.

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