Best Seller


  • 600 mg, 60 capsules
  • Item # 01534
Best Seller


  • 600 mg, 60 capsules
  • Item # 01534

Powerful antioxidant for whole-body health

A Best Seller, N-Acetyl-L-Cysteine (a.k.a. NAC) is an easily-absorbed nutrient with robust benefits for bronchial, respiratory, liver and immune health.
Gluten free Non-GMO

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$0.18/count | 20 - 60 Day Supply

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$0.15/count | 20 - 60 Day Supply

Great evidenced based supplement!

Mark, Tulsa, OK

There is so much to love about this product

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This product is great, the best!

Susan, Tempe, AZ

Frequently Bought Together

  • This Item: N-Acetyl-L-Cysteine, 600 mg, 60 capsules
  • Super R-Lipoic Acid, 240 mg, 60 vegetarian capsules
N-Acetyl-L-Cysteine, 600 mg, 60 capsules - Life Extension
Super R-Lipoic Acid, 240 mg, 60 vegetarian capsules - Life Extension

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600 mg, 60 capsules


$0.18/count | 20 - 60 Day Supply

N-acetyl-L-cysteine supports bronchial and respiratory health and healthy glutathione levels. It is also a chemical precursor to glutathione, a powerful antioxidant which protects cells from free radical damage. NAC also defends against insults from foreign compounds at the cellular level and protects vulnerable neurons from oxidative stress.

Support immune health, liver function, and protect yourself from oxidative stress with N-Acetyl-L-Cysteine.

N-Acetyl-L-Cysteine Benefits

  • Promotes healthy cellular glutathione levels
  • Provides powerful antioxidant support
  • Supports immune system health
  • Encourages liver health & function
  • Promotes bronchial & respiratory health


Fight Back Against Oxidizing Free-Radicals

N-acetyl-L-cysteine is a chemical precursor to glutathione. Glutathione is a powerful antioxidant which helps protect neurons from oxidative stress. N-acetyl-L-cysteine also offers powerful support for liver and immune function and protects against insults from foreign compounds.

N-acetyl-L-cysteine is an easily-absorbed nutrient with potent benefits for whole body health.1 N-acetyl-L-cysteine also helps replenish your body’s supply of glutathione. N-acetyl-L-cysteine and glutathione have powerful antioxidant effects, helping to protect cells like vulnerable nerve cells in your brain from free radicals.2-5 N-acetyl-L-cysteine also defends against insults from foreign compounds at the cellular level.6,7

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.
  1. Antioxidants (Basel). 2019;8(5)
  2. Free Radic Res. 1999;31(4):273-300.
  3. J Pharmacol Sci. 2008;108(3):227-38.
  4. Brain Behav. 2014;4(2):108-22.
  5. Cell Chem Biol. 2018;25(4):447-459.e4.
  6. PLoS One. 2015;10(8):e0135815.
  7. N Engl J Med. 1988;319(24):1557-62.
  8. Eur Respir Rev. 2015;24(137):451-61.
  9. Multidiscip Respir Med. 2015;11:8.
  10. J Clin Diagn Res. 2016;10(12):Oc16-oc19.
  11. Hepat Mon. 2010;10(1):12-6.
  12. Free Radic Biol Med. 2008;45(9):1252-62.
  13. Curr Opin Pharmacol. 2007;7(4):355-9.

Serving Size 1 capsule

Amount Per Serving


600 mg

Other ingredients: vegetable cellulose (capsule), vegetable stearate, silica.


Dosage and Use
  • Take one (1) capsule one to three times daily, or as recommended by a healthcare practitioner.

Those who supplement with NAC should drink 6 to 8 glasses of water daily in order to prevent cysteine renal stones. Cysteine renal stones are rare but do occur.

  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

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