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Jarrow Formulas, N-A-C, N-Acetyl-L-Cysteine, 500 mg, 200 Capsules


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Jarrow Formulas, N-A-C, N-Acetyl-L-Cysteine, 500 mg, 200 Capsules

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Jarrow Formulas, N-A-C, N-Acetyl-L-Cysteine, 500 mg, 200 Capsules

In Stock
  • Expiration Date: 07/2019
  • Shipping Weight:
    0.21 kg
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  • Product Code: JRW-07003
  • UPC Code: 790011070030
  • Package Quantity: 200 Capsules
  • Dimensions:
    6.4 x 6.4 x 12.7 cm , 0.18 kg
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Product Overview


  • N-Acetyl-L-Cysteine
  • Precursor to Glutathione
  • Supports Liver & Lung Function
  • Dietary Supplement

N-Acetyl-L-Cysteine (NAC) is a powerful antioxidant amino acid and a precursor in the body to the critical antioxidant glutathione. Glutathione exerts a variety of protective effects, including detoxification and intracellular defense against oxidative stress. Substances known to reduce glutathione status are acetaminophen and alcohol.

Suggested Use

Take 1 capsule 1 or 2 times per day or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of gelatin.

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


Store in a cool, dry place, or at room temperature, and away from light.

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. If you have a medical condition, are pregnant, lactating, trying to conceive, or taking medications, consult your healthcare professional before using this product.

Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Capsule
Serving Per Container: 200
Amount Per Capsule % DV
N-Acetyl-L-Cysteine 500 mg *
* Daily value not established.
iHerb Customer Reviews


Posted by iHerb Customer on Oct 18, 2017 | Verified Purchase

I am very happy with this product

Thanks for your feedback!

Inflamation still there

Posted by iHerb Customer on Aug 22, 2017 | Verified Purchase

It doesnt make me feel any better.

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Good stuff

Posted by iHerb Customer on Jul 30, 2017 | Verified Purchase

Beer and BBQ weekends gave me stomach problems. Few capsules of NAC changed all that. I can enjoy my free time again.

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Liver helper and helps with my asthma

Posted by iHerb Customer on Jul 26, 2017 | Verified Purchase

While I'm working on my gut health to hopefully reduce or eliminate asthmatic reactions completely, my naturopathic doctor said I should take NAC for the "side effect" which is mucus reduction, as that is one symptom that sucks! I tend to get mucus in my lungs, as do many other asthmatics, which causes me to cough and is just plain gross. When I take this NAC (and I have tried one other brand which came highly recommended but did not work as well) I can totally tell a difference in mucus production, which is thinned and less frequently. Where there is mucus there is inflammation, so I like that the NAC doesn't completely eliminate the mucus as its there as its an indicator I still have healing to do, but it def helps break down the mucus to a barely noticeable amount. I have found this to be a great product that I will continue to use as long as I have to...hopefully not forever.

Thanks for your feedback!

Effective product!

Posted by iHerb Customer on Jul 20, 2017 | Verified Purchase

Great product at a reasonable cost! Felt its' effects after the 3rd/4th day of consumption. Rejuvenated and less fatigued! Bought the product again and will continue to do so!

Thanks for your feedback!