Jarrow Formulas® NAC Sustain® features N-AcetylL-Cysteine (NAC), an antioxidant amino acid and a precursor to glutathione.* Glutathione is important for detoxification.* The advanced bi-layer Sustain™ tablets combine 1/3 Quick Release with 2/3 Sustained Release formats to release NAC over time.

Suggested Use / Directions:
Take 1 tablet 1 to 2 times per day, preferably on an empty stomach with fruit juice or as directed by your qualified healthcare professional.

Serving Size:
1 Tablet

Amount Per Serving:

N-Acetyl-L-Cysteine ... 600 mg

Other Ingredients:
Carbomer, microcrystalline cellulose, calcium phosphate, beet root powder (for color), stearic acid (vegetable source), magnesium stearate (vegetable source), silicon dioxide and coating (hydroxypropylmethylcellulose, stearic acid [vegetable source]).

No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts. Vegan.


NOTE: Prolonged or elevated intake may alter liver function tests without affecting actual liver function. Inform your physician that you are ingesting NAC if you undergo liver function tests. Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use.