NAC N-Acetyl-L-Cysteine

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NAC N-Acetyl-L-Cysteine 120 Tablets (Allergy Research Group)


STATEMENT FROM ALLERGY RESEARCH GROUP: The FDA has recently made it known that they intend to enforce a ban on NAC in nutritional supplements.

The legislation they are using for enforcement is the Dietary Nutritional Supplement Act (DSHEA) of 1994. Companies using NAC as an ingredient prior to 1994 are grandfathered and may continue to use and sell NAC. ARG was using NAC prior to 1994 and is therefore protected and can lawfully continue sale of NAC.

NAC, the acetyl derivative of L-cysteine, is more stable than L-cysteine, and can convert into L-cysteine after being absorbed. NAC is a natural source of sulfur for metabolism, and an antioxidant that supports glutathione synthesis. Free form amino acid, high purity, well tolerated, and in tablet form to insure potency.

Ingredients per serving  
  • N-Acetyl-L-Cysteine, 500 mg
Other Ingredients  

Dicalcium phosphate, microcrystalline cellulose, magnesium stearate, silicon dioxide, stearic acid, croscarmellose sodium.


120 Tablets

Serving Size  


Suggested Use  

As a dietary supplement, 1 tablet one to three times daily, or as directed by a healthcare practitioner.

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