Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

Jarrow Formulas, N-A-C, N-Acetyl-L-Cysteine, 500 mg, 100 Capsules

Our Price:
You Save:
$7.77 (43)
Earn 5% Loyalty Credit ?

Sorry, this product is no longer in stock.

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

View Wish List
In Stock
  • Expiration Date: Oct 2018
  • Shipping Weight: 0.24 lbs
  • Product Code: JRW-07002
  • UPC Code: 790011070023
  • Package Quantity: 100 Capsules
  • Dimensions: 2.1 x 2.1 x 3.7 in, 0.2 lbs
Product Overview


  • 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
Servings Per Container: 100
  Amount Per Capsule % DV
N-Acetyl-L-Cysteine 500 mg *
* Daily Value not established.
iHerb Customer Reviews


Posted by 5217899864872627326 on Jan 23, 2017

I used to be looking for capsules that contains only L-cysteine so I'm happy to find this affordable one.

Verified Purchase

Was this review helpful to you?


Posted by 5504112208739110907 on Dec 12, 2016

I take it after drunk So good

Verified Purchase

Was this review helpful to you?

good product

Posted by myvitamin on Oct 30, 2016

Good product but bad smell .....I take 1 with ALA for antioxidant and support skin.....bought 3 bottles and to be continue.

Verified Purchase

Was this review helpful to you?

super product

Posted by MOjcah on Oct 25, 2016

very effective, but I had a headacke, if I took dose for every day

Verified Purchase

Was this review helpful to you?

Difficult to say if it works

Posted by chriswillisau on Oct 09, 2016

As with many supplements including this, I take them for the benefits of my body. Due to my illnesses, it's difficult to say if many products work. NAC is touted as being very good for the liver, and as we're all exposed to toxins in our diet and drinking water each day, as well as other afflictions that come along, I think it's a good idea to have more NAC in the diet for an extremely important organ. The price is cheap, too, and one per day with a hundred tablets - that's great value from a trusted brand.

Verified Purchase

Was this review helpful to you?