Last update
3/15/2026
Reviewed By
Reviewed By
Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 16 Reviews
8.4
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
N-acetyl-L-cysteine
600 mg
**
Most Useful Reviews
9
Aids OCD anxiety
36 people found this helpful
Results may differ, but NAC worked for my OCD-induced anxiety. I discovered it could be effective for anxiety linked to obsessive-compulsive disorder. I began to feel a calmness enveloping my heart. I now take it daily as a supplement. I’ve tried both Life Extension and Now Foods; both are effective. I often prefer Now, as it contains molybdenum, a mineral crucial for glutathione synthesis, which is rare in standalone supplements.
Read More
9
Noticeable impact
20 people found this helpful
I take this supplement for anxiety and to aid recovery from concussions. I’ve never been prescribed anything for anxiety because I often don’t persist with treatments. However, I found relief from my racing thoughts very quickly with this product. If only the pills weren’t so large, I’d be happier!
Read More
9
Calms anxiety effectively
7 people found this helpful
I felt lightheaded after taking the NOW Foods NAC, probably as I respond poorly to selenium. It causes my heart to race when I sleep. However, I still took it as it alleviated my headache. This NAC contains no selenium and slightly eased my pain without significant side effects thus far. Nonetheless, it does make me feel somewhat "heavy" if I take another dose the following day. I highly recommend it for anxiety; it helped a friend calm down during moments of ruminating and spiralling. It's best not to take too much, but during tough times, it's truly a lifesaver. I hope this assists you.
Read More
User Reviews
USERS' SCORE
Good
Based on 16 Reviews
8.4
- All Reviews
- Positive Reviews
- Negative Reviews
9
Aids OCD anxiety
36 people found this helpful
Results may differ, but NAC worked for my OCD-induced anxiety. I discovered it could be effective for anxiety linked to obsessive-compulsive disorder. I began to feel a calmness enveloping my heart. I now take it daily as a supplement. I’ve tried both Life Extension and Now Foods; both are effective. I often prefer Now, as it contains molybdenum, a mineral crucial for glutathione synthesis, which is rare in standalone supplements.
Read More
9
Noticeable impact
20 people found this helpful
I take this supplement for anxiety and to aid recovery from concussions. I’ve never been prescribed anything for anxiety because I often don’t persist with treatments. However, I found relief from my racing thoughts very quickly with this product. If only the pills weren’t so large, I’d be happier!
Read More
9
Calms anxiety effectively
7 people found this helpful
I felt lightheaded after taking the NOW Foods NAC, probably as I respond poorly to selenium. It causes my heart to race when I sleep. However, I still took it as it alleviated my headache. This NAC contains no selenium and slightly eased my pain without significant side effects thus far. Nonetheless, it does make me feel somewhat "heavy" if I take another dose the following day. I highly recommend it for anxiety; it helped a friend calm down during moments of ruminating and spiralling. It's best not to take too much, but during tough times, it's truly a lifesaver. I hope this assists you.
Read More
9
Improves anxiety markedly
7 people found this helpful
Excellent antioxidant! This product significantly reduced my irritability, anxiety, and depression. It also improves memory, detoxifies heavy metals such as aluminium and lead, reduces inflammation, and aids lung disease and heart health. The capsule is 2 cm, easy to swallow, with no smell or taste. If my comment was helpful, please leave a thumbs up!
Read More
9
Effective yet misleading
7 people found this helpful
I’m very satisfied with this supplement, which has significantly improved my anxiety and helped alleviate sleep deprivation. However, I believe that the advertised number of capsules was misleading, as I finished the bottle sooner than expected. Nonetheless, the improvements have been notable.
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Frequently Asked Questions
7.5
Effective for anxiety
I noticed a difference after ordering NAC, having researched its effects on anxiety. I undertook a four-month trial and noticed a change after about three weeks. There was certainly a difference, and I am now back on iHerb to reorder.
7.5
Improved anxiety
I’ve been taking NAC for a few weeks and am impressed! It has boosted my mood, reduced stress and anxiety, and enhanced my respiratory health, energy levels, and mental clarity. The antioxidant properties have also lowered inflammation, promoting overall well-being. A high-quality supplement with no adverse effects. Recommended!
6
Eases anxiety and insomnia
6 people found this helpful
Very effective for boosting immunity and detoxifying the body while reducing anxiety and insomnia. The benefits can vary by individual; I have seen positive results from it.
9
Aids OCD anxiety
36 people found this helpful
Results may differ, but NAC worked for my OCD-induced anxiety. I discovered it could be effective for anxiety linked to obsessive-compulsive disorder. I began to feel a calmness enveloping my heart. I now take it daily as a supplement. I’ve tried both Life Extension and Now Foods; both are effective. I often prefer Now, as it contains molybdenum, a mineral crucial for glutathione synthesis, which is rare in standalone supplements.
9
Lifted anxiety
So much better than other brands. My mood has improved, anxiety has lifted, and I feel more clarity.
9
Improves anxiety markedly
7 people found this helpful
Excellent antioxidant! This product significantly reduced my irritability, anxiety, and depression. It also improves memory, detoxifies heavy metals such as aluminium and lead, reduces inflammation, and aids lung disease and heart health. The capsule is 2 cm, easy to swallow, with no smell or taste. If my comment was helpful, please leave a thumbs up!
9
Helps with anxiety
This is my favourite NAC so far. The quality is exceptional. I benefit greatly from this supplement, taking 2000mg daily. It helps with anxiety and enhances general wellness while protecting the body from oxidative stress.
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