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Jarrow Formulas, Inc.

NAC Sustain

NAC Sustain

Item: JR032

  • More stable and bioavailable than regular L-Cysteine

  • Antioxidant and precursor of glutathione

  • Patented formula releases over a period of 4 hours

600 mg 100 Tabs

Retail $25.95
Save 30%
In Stock
  • More stable and bioavailable than regular L-Cysteine

  • Antioxidant and precursor of glutathione

  • Patented formula releases over a period of 4 hours
N-A-C Sustain is a patented, and time-released form of N-Acetyl Cysteine (NAC). NAC has a biological half-life of 1.5 hours in the bloodstream. N-A-C Sustain will release in the small intestine over a 4-hour period in order to maintain blood levels over a longer period of time. N-acetyl-l-cysteine (NAC) is an amino acid and antioxidant. It is a precursor in the body to the critical antioxidant glutathione, which is produced intracellularly by the liver. In fact, some health experts believe that supplementation with NAC is the preferred way to increase levels of glutathione rather than supplementing with glutathione itself. Glutathione exerts a variety of protective effects including detoxification and cellular defense against oxidative stress.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 tablet

  Amount Per Serving %Daily Value
N-Acetyl-L-Cysteine 600 mg *

*Daily Value not established.

Other ingredients: Polyacrylate, calcium phosphate, cellulose, stearic acid, magnesium stearate, silicon dioxide and beet root powder (for color). Contains no common allergen. U.S. Pharmaceutical Grade N-A-C.

Usage: Take 1 to 4 tablets per day, preferably on an empty stomach with fruit juice, or as directed by your qualified healthcare consultant.

Shipping Weight

.33 lbs

Jarrow Formulas, Inc. NAC Sustain Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 5 out of 5 by 5 reviewers.
Rated 5 out of 5 by Great form of N-acetylcysteine I really like this gradual release form of NAC. I don't do well with a big dose all at once, and with NAC having a relatively short half-life, this slower dissolution form seems to work well. I feel it helps with fatigue. September 25, 2014
Rated 5 out of 5 by excellent Glutathione Booster If glutathione is the key to a functioning immune system,and we simply produce less as we age, a boost is in order, and NAC always only produced a short spike, but with NAC Sustain I can get a steady increase. August 7, 2014
Rated 5 out of 5 by Best NAC on the market NAC is huge for liver function. This is the best NAC on the market. Love the timed release! September 28, 2013
Rated 5 out of 5 by Helps with toxins This product really helps as part of a protocol to get toxins out of your body. August 3, 2013
Rated 5 out of 5 by Good product I would recommend it to a friend February 21, 2013
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1-5 of 5

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