Ingredient guide
What Is Zeaxanthin, and What Does It Do for Your Eyes?
Zeaxanthin is a yellow plant pigment from the carotenoid family. The body cannot make it, so it comes from food or supplements. It gathers in the macula at the center of the retina, where it forms part of macular pigment. Whether a capsule improves sight in healthy people has not been shown.
What is zeaxanthin?
Zeaxanthin is a yellow pigment made by plants. It belongs to the carotenoid family, the natural colors that tint many fruits and vegetables yellow, orange or green. Think of beta-carotene, the orange color of carrots, as the famous relative.
Zeaxanthin is a close chemical relative of lutein, and the two often turn up in the same foods. Corn and orange peppers are common sources of zeaxanthin, and dark leafy greens such as kale and spinach carry both pigments.
The name is also a source of confusion, because the product Zeaxan sounds like it. Zeaxan is the finished capsule. Zeaxanthin is one ingredient inside it, and it sits tenth of eleven in the blend.
Key facts
- Zeaxanthin is a carotenoid, a natural yellow, orange or green plant pigment.
- The body does not make it. All of it comes from food or supplements.
- It collects in the macula and, with lutein, forms macular pigment that absorbs some blue light.
- It dissolves in fat, not water.
- AREDS2 used 2 mg a day with 10 mg of lutein, in people with intermediate AMD (NEI).
- Better sight in healthy people has not been shown, and we claim no such thing.
Where does zeaxanthin come from?
It comes from plants, and from the animals and foods that eat or carry them. Your body cannot make it. Everything in your eyes arrived by way of a meal or a supplement.
Because it dissolves in fat, a little oil with greens, or egg yolk with spinach, helps the body take it up. The food post lists everyday sources.
What is it made from in a capsule? The Zeaxan label does not say. It prints a zeaxanthin line with a 5% mark and does not name the source material. The most likely reading is a standardized material, but that is a reading and not a fact.
What does zeaxanthin do in the eye?
In the eye, zeaxanthin settles in the macula, the small central patch of the retina. The macula handles sharp, straight-ahead detail, the kind you use to read or to recognize a face.
There, zeaxanthin and lutein form a yellow layer often called macular pigment. It screens out part of the blue light before it reaches the cells behind it. Both pigments also act as antioxidants. Researchers study them for those reasons.
That is a description of where the pigment sits and what it does in general. It is not a promise about what a capsule will do for you. The only large study that tested the pigments for an eye outcome did so in people who already had a specific eye disease.
Is zeaxanthin good for your eyes?
It is part of the eye's own pigment, so it is fair to say it is relevant to the eye. Whether taking more of it helps is a different question, and the answer is narrow.
AREDS2, a large National Eye Institute study, used a formula with 10 mg of lutein and 2 mg of zeaxanthin a day, plus vitamins C and E, zinc and copper. The participants already had intermediate age-related macular degeneration (NEI). The NEI adds that the earlier AREDS formula gave people with no AMD, or early AMD, no benefit.
What can be said
- It is a carotenoid found in the macula.
- It comes from food or supplements.
- A named formula was studied in people with intermediate AMD.
What cannot be said
- That it improves sight in healthy eyes.
- That it prevents or treats macular degeneration, cataracts or dry eye.
- That a given capsule contains a useful amount.
What does zeaxanthin do for the rest of the body?
People search for zeaxanthin and skin, the body, the heart and tanning. Our sources describe zeaxanthin only in the eye and as a plant pigment, and they say nothing about skin or other organs. So we make no claim there.
What we can add is a plain caution. A pigment found in a healthy diet does not turn a supplement into a general health aid. The NIH Office of Dietary Supplements says supplements can help with gaps but are no stand-in for a healthy diet (NIH ODS).
How does Zeaxan use zeaxanthin?
The Zeaxan label lists zeaxanthin (5%) as the tenth ingredient inside the 600 mg blend. No amount is printed. At most it could be 60 mg of a material marked 5%, which is about 3 mg if the mark means pure pigment. Lutein, in fifth place, could be at most about 6 mg on the same reading.
Compare that with the 2 mg of zeaxanthin and 10 mg of lutein used in AREDS2. Zeaxan could land near those amounts or well below them, and the label does not say which. It also lacks the other AREDS2 nutrients, which makes it no copy of that formula.
The dose post works through these numbers in full.
How do you spell zeaxanthin, and what about meso-zeaxanthin?
The name is easy to type wrong. Zeaxanthin ends in -thin, and the product Zeaxan ends in -xan. Keep them straight when you search.
Meso-zeaxanthin and zeaxanthin isomers come up in searches. Our sources do not cover either, so we cannot say what they do or where to buy them. The Zeaxan label lists zeaxanthin and does not mention either one.
What should you ask an eye doctor about zeaxanthin?
- Does my exam suggest any supplement is worth considering?
- Would an AREDS-style formula apply to me?
- How does my diet compare with what you would like to see?
- Is anything on a product label a problem with my medicines?
An eye doctor sees your retina and macula. A web page does not. If your question is about your own eyes, that is the right place to take it.
How should you read a zeaxanthin line on a label?
Look for a milligram amount. If there is only a percent mark, ask what it refers to. On the Zeaxan label, the 5% after zeaxanthin is not explained, and no amount is printed.
Then ask where the line sits. In a proprietary blend, place sets a ceiling. Tenth of eleven means at most 60 mg of the material. That is a long way from a certain dose.
What are the zeaxanthin facts at a glance?
Facts about the pigment come from the NEI and NIH notes in the site's source list. Product facts come from the label.
| Item | Fact | Source |
|---|---|---|
| Type | Carotenoid; fat-soluble plant pigment | Site guide |
| Place in the eye | Macula, as part of macular pigment | Site guide |
| AREDS2 dose | 2 mg zeaxanthin and 10 mg lutein a day | NEI |
| Zeaxan label | Zeaxanthin (5%), tenth of 11 in a 600 mg blend; amount not published | Supplement Facts |
| Price | Shown at checkout | Order page |
| Guarantee | 60-day money-back; terms shown at checkout | Seller's pack |
Frequently asked questions
What is zeaxanthin?
A yellow plant pigment in the carotenoid family. The body cannot make it, so it comes from food or supplements.
What does zeaxanthin do for your eyes?
It collects in the macula and forms macular pigment with lutein, which absorbs some blue light. That describes where it sits, not what a capsule will do.
Does zeaxanthin improve vision?
Not shown in healthy people. AREDS2 tested it in people with intermediate AMD, and the NEI reports no benefit from the earlier formula where AMD was absent or early.
Is zeaxanthin the same as Zeaxan?
No. Zeaxanthin is one ingredient. Zeaxan is the finished capsule with ten other ingredients.
Can zeaxanthin treat eye disease?
No supplement can claim to treat disease, and this site makes no such claim. See an eye doctor for any eye condition.
Does zeaxanthin help dry eyes?
Our sources do not say it does. Dry or sore eyes that persist are a reason for an eye exam.
Sources for this page
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Our view
Zeaxanthin is a real and interesting pigment, and it does sit in the part of the eye that reads fine detail. That is the solid ground. Beyond it, the claims get thin fast.
We would treat it as one part of a bigger picture: food, eye exams, sun protection and screen breaks come first, and a capsule comes after. If you take Zeaxan, know that zeaxanthin is a small, unlabeled share of a 600 mg blend, and ask your eye doctor before you rely on it for anything.
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