Vegan S Acetyl L Glutathione, 100 mg, 60 Tablets L Glutathione vs. oxidized vs. Reduced Glutathione Science Explained intoxdetox Frontiers Gene specific modifications unravel ethanol and acetaldehyde actions Combination of Cysteine and Glutathione Prevents Ethanol Induced Hangover and Liver Damage by Modulation of Nrf2 Signaling in HepG2 Cells and Mice Your liver needs time to turn ethanol into acetate. If you drink too fast, that "hangover chemical" (acetaldehyde) piles up and ruins the fun. Drink slow and give your enzymes a break.