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NAC, the acetyl derivative of L-cysteine, is more stable than L-cysteine, and can convert into L-cysteine after being absorbed. NAC is a natural source of sulfur for metabolism, and an antioxidant that supports glutathione synthesis.* Each tablet contains 500 mg of NAC (N-acetyl-L-cysteine). Free form amino acid, high purity, well tolerated, and in tablet form to insure potency.
