Zeaxanthin: what it does, by goal, and the dose that worked

What the 142 human studies of zeaxanthin we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.

Human studies graded
142
Goals with an improvement
3
Products
7
Ranked
7
Biohacker opinions
8/10
What it does, by goalMembersThe top 5 of 5 goals
GoalWhat the studies showStudiesDose that worked
Improved in studies 57 studies, 31 showed an improvement, 9 found none, 9 pooled analyses571 mg
Improved in studies 27 studies, 4 showed an improvement, 9 found none, 2 pooled analyses27–
Improved in studies 19 studies, 2 showed an improvement, 6 found none19–
No effect in studies 21 studies, 10 showed an improvement, 2 found none, 2 pooled analyses21256 mcg
No effect in studies 29 studies, 8 showed an improvement, 8 found none, 2 pooled analyses29–

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Products – highest ranked firstMembersThe top 3 of 7
Dose and safetyThe dose that worked and the upper limit

The studies taken by mouth that showed an improvement gave 256 mcg to 20 mg a day.

Biohacker panelMembersWhat our 10 biohackers say about zeaxanthin
Questions people askMembersAnswered from the figures on this page

What is zeaxanthin good for?

Answer for members.

How much zeaxanthin a day?

Answer for members.

Can I take zeaxanthin with my meds?

Answer for members.

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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 →