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NAC (N-Acetyl-L-Cysteine)


  • N-acetyl cysteine (NAC) is used by the body to build antioxidants. Antioxidants are vitamins, minerals, and other nutrients that protect and repair cells from damage.
  • As a prescription drug, doctors use NAC to treat acetaminophen overdose. It may also help break up mucus in people with some lung diseases, like chronic bronchitis.
  • As a supplement, some people use NAC to try to protect the liver. There’s evidence it can help prevent bladder or neurologic damage caused by some drugs.
  • NAC might help prevent colon cancer in people with some types of colon polyps, but more research is needed to be sure. NAC does not seem to reduce the risk of lung cancer or head and neck cancer.
  • There’s mixed evidence about whether NAC helps with other conditions, like infertility, the flu, cystic fibrosis, liver disease, angina, HIV, high cholesterol, and some eye conditions. More research is needed.
  • Cysteine is required to make glutathione
  • Important for keratin synthesis for healthy skin, hair and nails
  • Naturally occurring in keratin, the protein in skin, hair and nails
  • One of Solgar’s premium-quality amino acid range
  • Vegan, Vegetarian, Kosher

Learn more about the medical uses of NAC

Top 9 benefits of NAC

Read the Science on lung disease and uses for NAC

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“I hate to say it… but this supplement really is a panacea of all ills for modern day society poor health.  Look at the disorders and diseases that surround us, observe the eating habits/choices of modern day society and you will quite simple see where NAC may support global health and wellbeing.  There is a sad fact to NAC, it is often missed off the radars of health professionals and therefore missed out of the patients journey to improved wellbeing.”


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