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  • Gluten free

  • Dairy free

  • Soy free

  • Non-GMO

  • Milk free

  • Vegetarian

N-Acetyl-L-Cysteine (NAC) is an amino acid that is a precursor to glutathione, the body’s most powerful antioxidant, which helps promote optimal detoxification. NAC is heavily researched for its role in optimizing lung health, and is also used for rapid recovery after workouts.*


Suggested Use / Directions:
Take 1 capsule per day, or as directed by your health care practitioner.

Serving Size:
1 capsule

Amount Per Serving:

N-Acetyl-L-Cysteine ... 900 mg


Other Ingredients:
Cellulose (capsule), vegfetable stearate, silicon dioxide, ascorbyl palmitate. 

Gluten Free, Dairy Free, Soy Free, Vegetarian, Non-GMO


Keep out of reach of children. 

About enhanced testing

Every product on Fullscript meets our high quality standards – but we don’t stop there. Enhanced Testing means select products are pulled directly from Fullscript’s shelves and tested by independent labs, so what’s on the label matches what’s in the product.

Learn more about the testing methods

Enhanced testing

NAC 900mg (Formerly N-Acetyl-L-Cysteine)

Designs for Health

$45.99

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