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  • Jarrow Formulas Nac Sustain 600mg, 100 Tablets
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Jarrow Formulas Nac Sustain 600mg, 100 Tablets

by Jarrow
| 5 answered questions

List Price: $23.95
Price: $18.15 ($0.18 / Count) & FREE Shipping on orders over $35. Details
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In stock on January 2, 2015.
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100 Tablet
  • Glutathione exerts a variety of protective effects
  • Detoxification and intracellular defense against oxidativestress
  • Substances known to reduce glutathione status are acetaminophen and alcohol
22 new from $17.90

Frequently Bought Together

Jarrow Formulas Nac Sustain 600mg, 100 Tablets + Jarrow Formulas Milk Thistle Standardized Silymarin Extract 30:1 Ratio, 150 mg per Capsule, 200 Gelatin Capsules
Price for both: $30.14

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Product Description

Size: 100 Tablet

Product Profile

Jarrow Formulas N-A-C (N-acetyl-L-cysteine) is a stable form of the amino acid L-cysteine. N-A-C is cysteine that has been modified with an acetyl group are stabilized and made more bioavailable. It is essentially a combination of cysteine and acetic acid, which is a primary component of vinegar. L-cysteine, like cystine and taurine, is a sulfur-containing amino acid that can be produced by the body from the essential amino acid methionine. It is considered a non-essential amino acid for this reason, but is conditionally essential in infants and in the case of certain nutrient deficiencies or debilitating conditions. Inadequate methionine in the diet, low selenium intake, chronic disease, and advancing age reduce the body’s ability to convert methionine to cysteine. Likewise, stress and environmental toxins may increase the need for cysteine beyond the body’s capacity for conversion. N-A-C is preferred to cysteine, or cystine, as a supplement because of its stability, solubility, and greater ability to donate sulfur.

Distinguishing Features:

  • Bilayer release technology: 1/3 quick, 2/3 sustained release
  • Antioxidant support both inside cells and in cell membranes*
  • Patented formula
Glutathione: Building Your Own Antioxidant*

N-A-C supplies readily available L-cysteine, which acts as an antioxidant itself or as a precursor to glutathione.* Glutathione is one of the body’s most important and abundant antioxidants inside of cells. The primary antioxidant mechanism involves the donation of an electron from the sulfhydryl (-SH) group of the cysteine molecule. Sulfhydryl-containing substances like N-A-C, cysteine, glutathione, and alpha-lipoic acid are referred to as reducing agents. This is opposed to oxidizing agents. Since reducing agents have opposing chemical functionality to oxidizing agents, reducing agents are also anti-oxidizing agents - or antioxidants. Antioxidants guard against the production and propagation of free radicals caused by oxidation. Antioxidants like cysteine act as electron donors and receptors to neutralize uncontrolled free radicals without becoming reactive or toxic themselves.* Glutathione, which contains cysteine, donates its own electrons to free radicals to reduce them to stable compounds. One example is the transformation of superoxide or peroxide to water. In the process, glutathione becomes oxidized. It is then reactivated by the donation of electrons and protons to become reduced glutathione, thereby making it electron-rich again and ready to scavenge yet more free radicals. Making cysteine more available to the body encourages the production of glutathione. Cysteine is also an antioxidant in its own right by virtue of its sulfhydryl group, and plays a vital role in the stability and functioning of proteins.* Cysteine, in proteins, also interacts with iron and zinc in the body to form enzymes that help coordinate respiration, energy production, immune surveillance, and repair functions in all tissues.* In hospital practice, N-A-C, rather than reduced glutathione, is given to support blood levels of glutathione.*

Liver Support*

Cysteine can neutralize chemicals known as aldehydes produced by air pollutants (i. e., smoke), some drugs, and by the liver as a byproduct of alcohol metabolism.* N-A-C is therefore important for maintaining the body’s antioxidant defenses in the face of everyday assaults.* N-A-C may be beneficial in reducing side effects of the pain reliever acetaminophen, particularly when ingested with alcohol, or taken in excessive amounts. Acetaminophen poisoning is the most common cause of calls to poison control centers in the United States. It causes severe damage to the liver. N-A-C supports the health of liver tissue by replenishing liver glutathione levels and also by enhancing the delivery of oxygen to liver cells.*

Advantages Of N-A-C Sustain

N-A-C Sustain is a bilayer quick release/sustained release N-A-C formulation. One third of the N-A-C releases rapidly and two thirds releases slowly over time. This raises blood levels quickly while also sustaining them.* N-A-C SUSTAIN releases in the small intestine over a longer period, which greatly assists in N-A-C antioxidant effect beyond the typical biological half-life (1. 5 hours) of N-A-C in the bloodstream.*

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


Product Details

Size: 100 Tablet
  • Product Dimensions: 6 x 5 x 4 inches
  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • ASIN: B0013OVVK0
  • UPC: 790011070016
  • Item model number: JAR70016
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (84 customer reviews)
  • Amazon Best Sellers Rank: #4,384 in Health & Personal Care (See Top 100 in Health & Personal Care)
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Customer Reviews

Excellent product and think it should be in everyone's home.
Dolores P.
When the pollen is severe, and I'm totally stuffed up, NAC can help open up my breathing by thinning my mucus.
Nils
In a major study, it even slowed the progression and severity of COPD in older adults.
Drew Trotman

Most Helpful Customer Reviews

63 of 65 people found the following review helpful By Drew Trotman on August 28, 2012
Size Name: 100 Tablet Verified Purchase
A friend of mine and I used to joke about how it's like breathing in yogurt here in the south with the heat, humidity and allergens. We were fellow asthma sufferers. I had been on an inhaled corticosteroid (Asmanex) for five years, due to adult onset asthma. I'm grateful for Asmanex because it helped me to breathe and kept my lungs from being damaged. I tried several times to go off of it because you never know what side effects await you down the road. But to no avail. After a few days I would go back on it because I like breathing. My friend texted me one day and told me she wasn't breathing yogurt anymore because of NAC. So I decided to try it. I picked up the Jarrow NAC sustained release and started out with three a day. Then two, Then one. Now all I do is take one each morning as soon as I wake up and I have no problems breathing and I am off of Asmanex successfully. This supplement has been endorsed by both the traditional and the alternative medical communities. NAC is what they give you if you go into the ER with acetaminophen poisoning. Evidently it binds it and takes it out of your system. It is also supposed to boost your immune system and there are a host of other things that it does for you. For me, just being able to breathe without drugs is a beautiful thing. And btw, I can breathe better using NAC than I could on the inhaled corticosteroid. Even on Asmanex, I couldn't be in a room with cooking or burning grease. Now it doesn't bother me at all. And I never need a rescue inhaler. Humidity hasn't bothered me either. For some reason, Jarrow's sustained release works better for me than straight NAC. Don't know why, but I don't argue with results. I'm surprised that more pulmonologists and allergists don't know about this. I guess information takes time to circulate. Try NAC.Read more ›
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56 of 59 people found the following review helpful By TD on April 4, 2011
Size Name: 100 Tablet Verified Purchase
I have been in the health field for years and know brands and products. I also have smoked in the past and can tell you that within 30 minuets for me since my digestion is fast it starts to work by clearing excess mucus and swelling in my lungs and lympth nodes. It also has been studied for mentally ill people to help their brains detox. They did a study with 1 gram in morning and 1 gram at night for schizophrenics. I like this method of detox the best nice and clean and fast. As for the tinnitus there isnt anything that will help that I have it too best thing you can do is go with the flow and not fight the inevitable and your stress will go down. Learn to enjoy it. This brand is time release wich is unique. The only other brand I would suggest is solgar vegitarian.
hope it helps you it has helped me alot. My mind is clearer too.
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23 of 24 people found the following review helpful By Michael P. Adams on October 24, 2011
Size Name: 100 Tablet Verified Purchase
I find myself able to write and program more since I started taking this 1-2 times a day. Also has a citrus-like flavor to it: I noticed reviews of other NAC pills complain about odor.

If anyone's interested, there's a fairly complete Wikipedia article on what this stuff does. [...]
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27 of 30 people found the following review helpful By Mike on April 20, 2011
Size Name: 100 Tablet Verified Purchase
I have used NAC for about two years on the advice of my pulmonary specialist. I have, until now, been using the gelatin capsule type. It always had a slight foul odor for which NAC is known (in liquid form). These sustained release tablets are so easy to take and have none of the taste associated with the gelatin capsule. It also works very well to thin secretions and keep the bronchi clearer.
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25 of 28 people found the following review helpful By s on December 27, 2013
Size Name: 100 Tablet
I'm so happy I ran across NAC as a solution to body focused repetitive behaviors. It took about 4 weeks to fully kick in, taking 2-3 tablets per day. I noticed small changes during those 4 weeks. In addition to kicking a couple stubborn ocd-like habits, I'm losing belly fat! My stamina has increased. My mind is clearer. My skin is clearer. The more I read about NAC, the more I think that everybody could use a little help from this supplement. Detoxing was never so easy. This brand was the first that I tried, so I can't say it's the best. I'll try other brands just to compare, but I can say that this brand definitely works for me!
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13 of 13 people found the following review helpful By KATHY on September 20, 2013
Size Name: 100 Tablet Verified Purchase
I have taken this product for over 6 months and it is better than Mucinex or any other mucus reducing product. If you have problems with sinus congestion, bronchial products and/or asthma-Please look into the research for this product. It sure has helped me feel better.
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21 of 24 people found the following review helpful By WeaverGrace on June 27, 2010
Size Name: 100 Tablet
I learned from people interested in naturopathy that Jarrow is a brand to be trusted for purity and potency. I have been using their sustain formula by taking one with plenty of water every night a few hours after my last meal, and one every morning before I make my breakfast. I take it for its antioxidant strength. I understand that amino acids like NAC work much better when taken on an empty stomach. I like the idea of taking a time-release form because NAC has such a short half-life. This tablet isn't the easiest to swallow: it has an unpleasant taste and sharper edges than a capsule, but at least it is shaped like a capsule instead of being circular.
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11 of 12 people found the following review helpful By cat on January 19, 2012
Size Name: 100 Tablet Verified Purchase
I have asthma and bad allergies so my Aunt read about the benefits of N-A-C and suggested that I start taking it! I am not joking but my asthma attacks have decreased from once a week to once a month. I am not sure that I can credit that all to N-A-C but I am going to keep using it because I like the results!! I also, don't feel as congested, which is wonderful!
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Most Recent Customer Reviews

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