Glutathione (glutathione, GSH) is a tripeptide with sulfhydryl groups combined with glutamic acid, cysteine, and glycine, which has anti-oxidant and integrated detoxification effects. The sulfhydryl group on cysteine is the active group of glutathione (so glutathione is often abbreviated as G-SH), which is easy to interact with certain drugs (such as paracetamol), toxins (such as free radicals, iodoacetic acid, mustard gas, Lead, mercury, arsenic, and other heavy metals) combined with integrated detoxification. Therefore, glutathione (especially glutathione in liver cells) can participate in biotransformation, thereby converting harmful poisons in the body into harmless substances and excreting them out of the body. Glutathione can also help maintain normal immune system function.