Description
N-acetylcysteine, or NAC, is a sulfur-containing amino acid your body uses to make glutathione, one of its primary internal antioxidants. Thorne Research NAC provides this amino acid directly, since dietary sources alone often aren’t enough to keep glutathione production steady.
As an antioxidant, NAC helps the body manage oxidative stress by keeping free radicals in check, which supports healthy immune function and normal liver function.* It’s also used to support normal respiratory function and mucus balance, along with healthy cognitive function.*
- Sulfur-containing amino acid and glutathione precursor
- Supports healthy immune function and liver function*
- Supports normal respiratory function and cognitive health*
- Used to support athletic recovery after exercise*
NAC is also commonly paired with other amino acids or with magnesium to support how well the body absorbs and uses them together. As with any antioxidant supplement, mention it to your provider if you’re on other medications, since interactions are possible.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.




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