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Safety and side effects: A meta-analysis of multiple studies in COPD patients showed no significant adverse effects at doses ranging from 600 mg to 3g/day.[ref] Studies in healthy adult athletes go up to 20g/day (not recommending this, just including it for safety).[ref] Conversely, in Parkinsons patients, there was a high number of adverse events at 6g/day of NAC

The concentration of glutathione in human erythrocytes is a heritable trait

Chemical peels can effectively reduce dark spots, hyperpigmentation, and improve overall skin texture with results visible after just a few sessions

ABCB11 variants increase the risk of developing DIC and ICP, while individuals with ABCB4 variants are at risk for LPAC and ICP