N-acetyl cysteine (NAC), also known as acetylcysteine, is a derivative of the amino acid cysteine and boosts the production of glutathione, a powerful antioxidant that helps with the detoxification of the body. NAC can be taken to manage acetaminophen poisoning. Moreover, it may be taken before alcohol consumption to help minimize damage associated with alcohol consumption. Other uses of NAC include liver support, provide relief of symptoms associated with respiratory conditions (such as bronchitis), boost brain function, improve sleep, boost immune function, reduce risk of heart disease, aid in pulmonary fibrosis treatment, help with polycystic ovary syndrome, and improve fertility in both men and women. NAC may also be used to treat neurodegenerative disorders (e.g. Parkinson’s disease), mental health disorders (e.g. PTSD), depression, and drug abuse.