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  • Product Code: NFS-02815
  • UPC Code: 068958028156
  • Package Quantity: 90 Veggie Caps
  • Dimensions: 2 x 2 x 3.9 in, 0.2 lbs (0.09 kg)
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Product Overview


Dietary Supplement

Convert Fat Into Energy

Purity & Potency Guaranteed

NAC (N-Acetyl-L-Cysteine) is a highly stable form of cysteine that provides antioxidant support and is especially beneficial for active people, the elderly and those exposed to polluted environments. Natural Factors amino acids are the highest quality pharmaceutical grade products available.

Manufactured by Natural Factors to ensure safety and potency in accordance with the Good Manufacturing Practices (GMP), of the FDA and Health Canada.

Suggested Use

1 capsule, 2-3 times per day or as directed by a health professional.

Other Ingredients

Rice powder, vegetarian capsule (carbohydrate gum [cellulose], purified water), magnesium stearate (vegetable grade).

Contains no artificial preservatives, color or sweeteners; no corn, dairy, gluten, soy, starch, wheat or yeast. Suitable for vegetarians.


Although NAC's active sulfur is beneficial, some people sensitive to the sulfur may experience stomach irritation.

Keep out of reach of children.

Sealed for your protection. Do not use if seal is broken. For freshness, store in a cool, dry place.

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Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving %Daily Value
N-Acetyl-L-Cysteine (Pharmaceutical Grade) 500 mg **
** Daily Value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

Great for liver detox

Posted by KentuckyWildcat on Apr 17, 2012

Cysteine is a lipotropic element. It helps the liver function more efficiently to neutralize and eliminate toxins and wastes. Other lipotropics include methionine, choline, B6 and B12.

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10 people found the following review helpful


Posted by Reviewer1390247 on Apr 27, 2009

Taking Acteyl L-Carnitine & Alpha-Lipoic Acid in conjunction with NAC, beta carotene and time released C along with other suppliments for COPD - seems to make a difference!

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6 people found the following review helpful

a little easier

Posted by 101010011 on Oct 26, 2008

after a few weeks of usage, my breathing cycle is less obstructed and i feel that im taking in a little more oxygen. this is difficult to do in a city like los angeles so every little bit of o2 i can get is beneficial. my hair and nails seem to be growin a little quicker but that could be my imagination or from other supplements.

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5 people found the following review helpful


Posted by Reviewer2140768 on Mar 25, 2008

Quite potent (and pungent) form of sulphur. Relieves bronchial congestion & is apparently a liver tonic (however bowel movements may remind you of Rotorua!)

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9 people found the following review helpful

Lowers blood sugar, helps swollen feet and ankles

Posted by Reviewer1055106 on Sep 23, 2008

This is the only substance that helps me with swollen feet and ankles. I ran out of it for a few days and my feet became swollen again and my blood sugar level got up considerably. NAC lowers the blood sugar a great deal. If you take insulin, monitor your blood sugar level. It is a blessing and has helped me reduce my insulin shots.

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11 people found the following review helpful

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