N-Acetylcysteine: what it does, by goal, and the dose that worked
What the 139 human studies of N-Acetylcysteine we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 4 of 4 goals
27 of these 139 human studies gave N-Acetylcysteine by drip, injection or inhaler, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 62 studies, 20 showed an improvement, 17 found none, 9 pooled analyses, 18 by drip, injection or inhaler | 62 | 400 mg | |
| Improved in studies 41 studies, 17 showed an improvement, 7 found none, 6 by drip, injection or inhaler | 41 | 10 mg | |
| Improved in studies 41 studies, 15 showed an improvement, 7 found none, 5 pooled analyses, 2 by drip, injection or inhaler | 41 | 600 mg | |
| Improved in studies 7 studies, 4 showed an improvement | 7 | 5 % |
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Products – highest ranked firstMembersThe top 3 of 5
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 10 to 2,550 mg a day.
Biohacker panelMembersWhat our 10 biohackers say about N-Acetylcysteine
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Questions people askMembersAnswered from the figures on this page
What is N-Acetylcysteine good for?
Answer for members.
How much N-Acetylcysteine a day?
Answer for members.
Can I take N-Acetylcysteine with my meds?
Answer for members.
Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →