Last update
5/18/2026
Reviewed By
Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 720 Reviews
7.7
Supplement Facts
Serving Size: 1 Veggie Capsule
Amount Per Serving
%DV
Selenium (from SelenoExcell® High Selenium Yeast) (Saccharomyces cerevisiae)
50 mcg
90%
Molybdenum (from molybdenum glycinate chelate)
50 mcg
110%
N-Acetylcysteine (NAC)
600 mg
†
Most Useful Reviews
8
Early cold treatment
201 people found this helpful
Nak is a staple in our first aid kit. At the first sign of a cold or runny nose, we start the course immediately.
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9
Cough relief
102 people found this helpful
I took it mainly for the way NAC thins out sputum; when I have a cold, my cough can persist. While NAC is actually ACC, the price is more affordable than buying it from a pharmacy.
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8
Effective for detox
100 people found this helpful
Broad spectrum help NAC is an almost universal agent with a wide spectrum of action. It has personally helped me in many ways. N-Acetylcysteine assists in detoxifying my liver, improving the removal of heavy metals, and neutralising free radicals, while promoting the production of glutathione, essential for detoxification. I use it to minimise manifestations of metabolic syndrome and for colds that can come with sputum. NAC serves as an excellent mucolytic and expectorant. When I feel unwell, I take 2 capsules at night and find relief by morning. It's well tolerated and significantly enhances resistance, reducing cold symptoms like ORV and influenza.
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User Reviews
USERS' SCORE
Moderately Good
Based on 720 Reviews
7.7
- All Reviews
- Positive Reviews
- Negative Reviews
8
Early cold treatment
201 people found this helpful
Nak is a staple in our first aid kit. At the first sign of a cold or runny nose, we start the course immediately.
Read More
9
Cough relief
102 people found this helpful
I took it mainly for the way NAC thins out sputum; when I have a cold, my cough can persist. While NAC is actually ACC, the price is more affordable than buying it from a pharmacy.
Read More
8
Effective for detox
100 people found this helpful
Broad spectrum help NAC is an almost universal agent with a wide spectrum of action. It has personally helped me in many ways. N-Acetylcysteine assists in detoxifying my liver, improving the removal of heavy metals, and neutralising free radicals, while promoting the production of glutathione, essential for detoxification. I use it to minimise manifestations of metabolic syndrome and for colds that can come with sputum. NAC serves as an excellent mucolytic and expectorant. When I feel unwell, I take 2 capsules at night and find relief by morning. It's well tolerated and significantly enhances resistance, reducing cold symptoms like ORV and influenza.
Read More
8
NAC benefits
67 people found this helpful
I took it several times at a daily dose of 600 mg, which can reduce homocysteine levels. Research shows N-acetyl cysteine (NAC) significantly reduces cardiovascular disease and helps in managing PCOS. NAC removes homocysteine from blood carrier proteins and is beneficial as an antioxidant. I drink it at the first sign of a cold.
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7
Effective for colds
42 people found this helpful
NAC (N-Acetyl-L-cysteine) is not only a remedy for cough and sputum but also a powerful detoxifier. While it is sold under the name A C C in Russia at a higher price than iHerb, it is worth it. The capsules are easy to swallow, though they have a faint sulphur smell. After using NAC, I noticed that the sputum thinned remarkably, making it much easier to expel. My daughter takes them during a cold when she has thick mucus, and it significantly alleviates the issue. Additionally, we utilise NAC to mitigate the toxicity of medications like paracetamol and ibuprofen on the liver. One capsule daily is sufficient.
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Frequently Asked Questions
8
Symptoms relief
2 people found this helpful
This is exceptionally strong! I gave it to a friend on the second day of his cold, and by morning, his symptoms had nearly vanished! It seemed to aid phlegm clearance, though it may not have been substantial. It should be combined with vitamins and zinc.
9
Quick recovery
Excellent quality! The package arrived just in time. I had a cold with a runny nose for several days, and after taking the NAC for two days, everything cleared up. I recommend it.
8
Quick cold remedy
4 people found this helpful
Helps at the first signs of a cold! At the first hint of illness, I take two capsules at night, and by morning, I often feel much better. It also assists in avoiding hangovers. A good product indeed.
9
Stops colds effectively
Perhaps many positive things have been said about NAC, but I will share my experience. I ordered it for the first time and tried it out of curiosity. It is now in the top 10 of my medicine cabinet. I frequently catch colds, including nasal and throat symptoms, with fever lasting up to a week. However, with NAC (at the first signs, I take 2-3 capsules twice a day), I ceased to feel unwell at all. My health improves by the second or third day with no complications, which is fantastic! Definitely a yes from me.
7
Relieves PMS symptoms
8 people found this helpful
At the onset of a cold, it aids significantly. My headaches diminish and it supports detoxification, making it a great addition to alleviate PMS symptoms as well. It’s also handy for X-rays or flights; the sauna and bath experiences are much improved! I wholeheartedly recommend it!
10
Remedy for colds
4 people found this helpful
A SOS remedy for colds. In Russia, they are familiar with ACC, and NAC serves as a more affordable alternative. I utilise it in complex detox therapy for colds, alongside vitamin C, hot water, zinc, sorbents, cumin oil, and kysta. NAC effectively removes viruses and lessens the load on the immune system. Remarkably, I have not been ill for more than 3-4 days for two years now!
10
Cleanses mucus
Wonderful! I consistently purchase this. During cold season, we give it to children and take it ourselves. It effectively cleanses the body of stagnant phlegm in the throat, nose, and lungs. Children take one tablet daily, while adults take two. I highly recommend it!
