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Twinlab, NAC, (N-Acetyl-Cysteine), 60 Capsules
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Twinlab, NAC, (N-Acetyl-Cysteine), 60 Capsules
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Twinlab, NAC, (N-Acetyl-Cysteine), 60 Capsules


23 Reviews
In Stock
  • Product Code: TWL-00211
  • UPC Code: 027434002110
  • Package Quantity: 60 Capsules
  • Dimensions: 2.4 x 2.4 x 4.3 in, 0.45 lbs (0.2 kg)
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Product Overview

  • Free Form Amino Acid
  • Dietary Supplement

NAC (N-Acetyl-Cysteine) is a precursor of glutathione in the body and a protected sulfur-containing amino acid. It is more stable than the sulfur-containing amino acid L-Cysteine.

Twinlab NAC (N-Acetyl-Cysteine) Capsules are easier to swallow and assimilate. They also contain no tablet binders, coating, salt, colorings or preservatives.

Suggested Use

Take one capsule daily, preferably with a meal.

Other Ingredients

Gelatin, medium chain triglycerides, silica, magnesium stearate.


Keep tightly closed in a cool, dry place.

This product is packaged in a glass bottle for maximum stability, quality and freshness.

This product is manufactured at our own state-of-the-art facility.

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Supplement Facts
Serving Size 1 Capsule
Amount Per Capsule % DV
NAC (N-Acetyl-Cysteine) 600 mg
† Daily Values not established.

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Good product
Clears my sinuses & bronchial airways effectively. Helps my liver function properly and so I feel less toxic. Took a week for my system to settle down though. First week had diarrhea, queasy tummy and cold symptoms as it began to do the job. Took activated charcoal capsules at night on empty stomach to clear it up. Feeling great now as it has improved my system nicely overall.
May 07, 2008
This stuff really works. I heard about NAC through my psychiatrist because even though I take medication in conjunction with all sorts of natural supplements, amino acids (including Dr Vera's Pre Gaba, which is a really great product but expensive), nutrition, meditation and exercise, I still have to take a lot of sleeping medication and my anxiety is still crippling. I tried it in a research trial but had to drop out because the dose of 2,000 mg a day just knocked me out so I decided to try it myself and experiment with the doses. This brand appealed to me because before I saw it on iherb I saw this advertised on another website as it has no fillers, binders or added ingredients which I was surprised it didn't say that on iherb as so many of the NAC products I looked at have added ingredients and this is one of the rarer ones that are just the amino acid. I've been trying it out, starting at 300mg morning and night and working my way up to 1,100 at night and still experimenting. I can sleep at night on the minimum medication now and my anxiety has gone down. I'm still waiting to see the effects on depression which was the subject of the NAC trial I participated in but this could potentially be a lifesaver for me. I've stopped taking the GABA as the NAC is pretty much doing the same thing and I'm saving myself a lot of money. Plus I read that it resets synapses in the brain that have been damaged by drug use which I used to be quite a heavy drug user. I am so glad that I stumbled across this product and this one in particular is working great. Another great side effect is I've noticed my skin is glowing as it's a powerful antioxidant and my bowels are moving regularly again. Really awesome product and great price. Can't wait to keep seeing the effects!
Nov 03, 2014

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