NOW Supplements, NAC (N-Acetyl-Cysteine) 1,000 mg, Free Radical Protection*, 120 Tablets

(13 customer reviews)


Last updated on March 20, 2023 12:14 am Details


  • FREE RADICAL PROTECTION/NORMAL IMMUNE SYSTEM FUNCTION: N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine.
  • Maintains cellular health: NAC can help to support healthy brain and neuronal tissues.
  • Classifications/certifications: Kosher, non-GMO, soy free, nut free, made without gluten, dairy free, egg free
  • GMP quality assured: NPA A-rated GMP certification means that every aspect of the now manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
  • During the summer months products may arrive warm, but Amazon stores and ships products in accordance with manufacturers’ recommendations, when provided.

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Price History for NOW Supplements, NAC (N-Acetyl-Cysteine) 1,000 mg, Free Radical Protection*, 120 Tablets


Current Price $18.99 February 1, 2023
Highest Price $18.99 February 1, 2023
Lowest Price $17.84 January 27, 2023
Since January 27, 2023

Last price changes

$18.99 February 1, 2023
$17.84 January 27, 2023

Additional information

Is Discontinued By Manufacturer


Product Dimensions

4.63 x 2.63 x 4.75 inches, 7.05 Ounces

Item model number


Date First Available

June 6, 2014


NOW Sports – Nutrition and Wellness

13 reviews for NOW Supplements, NAC (N-Acetyl-Cysteine) 1,000 mg, Free Radical Protection*, 120 Tablets

  1. Paula Carson

    It works very well

  2. Ram Mohan

    It really helped with managing stress and panic attacks . My wife and me both felt it helped in managing extreme bouts of panic and stress . We take one every night . Sleep is also better . So far no side effects. But if you take one in the morning it makes you drowsy .

  3. Sam

    the tablet is big

  4. micha living the dream

    just as described

  5. Ju Merrill

    They’re hard to swallow, not for the size which is fine but the coating taste 🙁

  6. Will Eyer

    I started taking this product 60 days ago, and I’m already seeing excellent results. My knee which needs a TKR has eased up with pain and increased in functionality. I went for a four mile run just yesterday. I moved so well, I couldn’t believe it. Cycling, did one of my usual routes and PR’d the F out of it. Dialed back the dosage to just one a day. Three in one day is way too much for me. The taste is awful. A very bitter pill to swallow.

  7. Amazon Customer

    Just as advertised

  8. gkhelland

    Does this help? Unknown! Will continue to use for a time and decide.


    Not working in body properly , because the dose recommend for body is 600Mg at a time / serving .And it gives us 1000Mg which is not properly usable or Selenium and Molbidium not present that why it’s a also factor for not properly working in body.

  10. Amelia

    After I purchased this supplement, I read that it increases the risk of initiation and growth of certain cancers. These experiments have been done in mice, so the applicability to humans isn’t clear.
    I am unable to comment on the quality of these tablets, which I haven’t taken.

  11. Gabriela

    Me lo recetaron por un padecimiento ocular y el Dr me dijo que es muy buena opción por la dosis que tiene.

  12. Janet O’Connor

    I was finding it difficult to concentrate and my energy level was down, this product helped greatly.

  13. Joanna Catechis

    We have been taking this product to keep our immune system strong. My children started taking it at the beginning of the school year and have yet to get sick, even with the flu, taking down everyone. My mother has had affects from pneumonia for the past year, but feels great after taking these. It’s a natural supplement, which is always a plus.

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