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Availability:
In Stock.
Arrives
Tuesday, Sep 16
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Features
- FREE RADICAL PROTECTION*: Take 1 NAC veggie capsule with selenium twice daily for free radical protection and to maintain cellular health*
- IMPORTANT NOTE ABOUT THIS PRODUCT: Black spots may appear in NAC because of a normal oxidative reaction, but product is safe to consume. These spots are NOT mold or any other micro-contamination. Micro-testing has been performed to assess product safety
- CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Vegan/Vegetarian, Made without Gluten, Kosher, Dairy Free, Egg Free, Nut Free, Soy Free, UL Certified
- GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
- Packaged in the USA by a family owned and operated company since 1968
Description
Maintains Cellular Health With Selenium N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and is also necessary for the formation of glutathione. Selenium is an essential trace mineral that facilitates the production of several important enzymes. Brand Story By NOW Foods
Brand: NOW Foods
Flavor: Unflavored
Primary Supplement Type: Selenium
Unit Count: 100 Count
Item Form: Capsule
Item Weight: 0.1 Kilograms
Item dimensions L x W x H: 2.25 x 2.25 x 4.38 inches
Special Ingredients: Amino Acid
Diet Type: Halal, Kosher
Product Benefits: Detoxing, Liver Health Support
Is Discontinued By Manufacturer : No
Product Dimensions : 2.25 x 2.25 x 4.38 inches; 3.53 ounces
Item model number : 0085
Date First Available : September 16, 2003
Manufacturer : NOW Sports - Nutrition and Wellness
Best Sellers Rank: #4,185 in Health & Household (See Top 100 in Health & Household) #66 in Amino Acid Nutritional Supplements #554 in Sales & Deals
#66 in Amino Acid Nutritional Supplements:
#554 in Sales & Deals:
Customer Reviews: 4.6 4.6 out of 5 stars 5,146 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Sep 16
This item is non-returnable:
Non-returnable due to Food safety reasons
View our full returns policy here.
Non-returnable due to Food safety reasons
View our full returns policy here.
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Top Amazon Reviews
Size: 100 Count (Pack of 1)
This has been a miracle supplement for my 7 year old son. I originally purchased it because I had read it can help with nose picking which my son was doing pretty constantly and claimed he couldn’t help it. He’s been taking one pill a day and over the course of a few weeks, I have definitely seen a difference in the picking. Even better, his whole attitude is so much more positive! This somehow has made him happier and nicer. I didn’t anticipate any of that, but it’s been a wonderful surprise. I should note that he really doesn’t like the taste and isn’t able to swallow pills yet so I break a capsule in half, pour the supplement on a spoon and cover it with applesauce. This seems to cut the taste for him.
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Reviewed in the United States on April 1, 2025 by JSK JSK
Size: 100 Count (Pack of 1)
If you try smoking marijuana while you're on a high dosage of this, you're not even gonna feel that high. It works perfectly for dulling that feeling of wanting to keep on smoking for me. And it's a tool that I use to help me quit. Think of it like naltrexone, but for weed. I will say it's not a one hundred percent cure. Like if you keep on smoking eventually you will get high. But from what I noticed, you're going to have to be smoking for a long time. It really just dulls the enjoyment of compulsive activities. Even if you like cranking the ham, you'll notice that it's not that fun Anymore. This is a really powerful tool for aiding in controlling what seems like certain pathological urges. Just to be clear, you can still get high on it. It's just not going to be all that fun, you're going to be sitting there, wondering, "are my drugs working?" For a couple to a few hours. Until it wears off. If you're really addicted, you'll start fighting the necessity to take the nac Don't do that. You want to dull whatever reward sensation smoking gives you and this helps do that. Also, this stuff is very protective of the liver, which is good. If you're like me and still can partake in drinking responsibly. And I don't use the word responsibly lightly.
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Reviewed in the United States on August 28, 2025 by Amazon Customer
Size: 100 Count (Pack of 1)
Great supplement. Great price
Reviewed in the United States on June 30, 2025 by Amy & Eric
Size: 100 Count (Pack of 1)
(read the update below if you don't want to know the background) I was prescribed accutane for 5 months and anyone who knows anything about accutane has probably heard about its numerous side effects. On about the fourth month into the treatment, I started having memory issues but didn't quite realize it was from the drug because it was a slow and gradual change over time. Once the fifth month rolled around, it was too late, and I started having severe memory and cognitive functioning problems. I was about halfway done with college holding a 4.0 GPA and then suddenly failed just about everything during the semester of that fifth month of accutane. I had to put school on hold until things got better. Month after month went by and I still didn't notice any improvement in memory. Feeling helpless, I started searching for answers on how long it takes to recover. Searched all over the internet and saw a number of different doctors that all told me there are no meds to help reduce the side effects, and it will simply take time but should be better after about 6 months. A year and a half later, and I still have memory problems.. I decided to then do my own research and dig deep into the study of my mental issues so that I can diagnose myself because after all, I know the way I feel better than a doctor who has never experienced such a thing. By the way, this was not easy having memory problems and having small moments of time when I could actually comprehend something I was reading. However, I eventually did it and after verifying my research with various credible sources, I feel I have a pretty good understanding about what happened to me. Anyway, long story short, accutane chemically altered my body and caused an intense hormonal imbalance. I also discovered that NAC is a major part of my solution. I bought a bottle, and the first time I had used NAC, within about 20 to 30 minutes later my body felt as though a war was going on inside. I felt warm and sort of tingly but nothing of any real discomfort. I think that's just how bad the imbalance apparently was. But before long, I was overwhelmed with happiness because FINALLY, I could think more clearly again. This is not the cure all, but my goodness it helps. Since I have started taking this, I have noticed a much faster increase in my mental recovery. The big problem I still face is the memory encoding, but there is no drug to regrow the neurons that were destroy while taking accutane. NAC helps prevent the radical hormones from destroying neurons. Mind you, this all seems to be VERY new research and is not entirely understood, which is why the doctors couldn't really give me good answers. In my opinion, this should be given with accutane to be taken together. I would also recommend this to anyone with a hormonal imbalance. School has become a nightmare ever since taking accutane but NAC is my go-to drug for when I start to not think clearly. It helps me think clearly throughout the day, but not necessarily with the encoding of memory. Anyway, If you are interested in knowing more about what I discovered, let me know. The one side effect I noticed from NAC is that it sort of neutralizes your libido levels (because it promotes balanced hormone levels), but as for me, I can care less so long as I can think more clearly. I hope this helps at least one person out there. Update: 13 Apr 2016 I won't go into all the research, but all of my research is found on either .gov medical websites (and I check their sources), and the studies I looked over were pulled from my school's scholarly sources library database. I now take N-AC with L-AC, omega-3's, multi vitamin, ginkgo extract, huperzine, vitamin D3, and magnesium citrate. As it turns out, people have done some of the work for me so I'm not buying all kinds of pills. I found a pill that combines the N-AC, L-AC, omega-3's, huperzine, ginkgo, along with a few others and works great. My advise to anyone considering taking accutane would be to take the natural route instead. Overall, my brain functions most efficiently when I get enough sleep, eat healthy, exercise every early morning, and continue learning new things. Once you can include this routine in your life, supplements absorb much more efficiently into your body. Thus, giving more optimal results from them. Not the cure, but helps a ton.
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Reviewed in the United States on November 29, 2015 by Kevin
Size: 100 Count (Pack of 1)
Llego en muy buen estado y muy rapido!
Reviewed in the United States on August 6, 2025 by Maribel sanchez
Size: 100 Count (Pack of 1)
This is my fourth time buying it and I absolutely love it. I won’t lie. The smell is horrible. But the benefits are way better.
Reviewed in the United States on July 19, 2025 by Damira Jolie
Size: 100 Count (Pack of 1)
Amino acids are total game-changers for your health! These little protein powerhouses fuel your muscles, give you more energy, and help keep your immune system strong. Need to recover faster after a workout? BCAAs are your go-to. Want to sleep better and feel happier? Tryptophan’s got you. They even help your skin glow and keep your hair and nails on point. While a good diet covers the basics, amino acid supplements can seriously level up your game, whether you're an athlete, a busy parent, or just need that extra health boost. They’re like your secret weapon to feel awesome and stay unstoppable!
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Reviewed in the United States on March 14, 2025 by Louis C Louis C
Size: 100 Count (Pack of 1)
I'm taking this brand on the advice of my naturopath.
Reviewed in the United States on June 30, 2025 by Amazon Customer