Scores 35/35 for dosage transparency, 23/25 for a clean formula, 21/25 for label completeness. 8 ingredients disclosed with amounts.
Ranking
Eye health is one of the few supplement categories built around a large clinical trial: the AREDS2 formula of lutein, zeaxanthin, vitamins C and E, zinc and copper. Products can be compared directly against those amounts, which makes this a good category for label-reading.
We ranked lutein, zeaxanthin, bilberry and macular-support formulas sold on iHerb by label quality.
Scores 35/35 for dosage transparency, 23/25 for a clean formula, 21/25 for label completeness. 8 ingredients disclosed with amounts.
Scores 35/35 for dosage transparency, 23/25 for a clean formula, 21/25 for label completeness. 11 ingredients disclosed with amounts.
Scores 35/35 for dosage transparency, 22/25 for a clean formula, 21/25 for label completeness. 7 ingredients disclosed with amounts.
Every product is scored 0–100 from its label data in the NIH Dietary Supplement Label Database: dosage transparency (35 points - are amounts stated per ingredient, or hidden in a proprietary blend?), label completeness (25), formulation cleanliness (25 - fillers, dyes, titanium dioxide and other non-active ingredients) and ingredient profile (15). The Top 10 admits only products scoring 60 or higher; among those, products with a verified retail listing are shown first so the list is one you can act on. No brand can pay to be included or moved up.
The AREDS2 formula is the reference: lutein 10 mg, zeaxanthin 2 mg, vitamin C 500 mg, vitamin E 400 IU, zinc 80 mg and copper 2 mg per day. That zinc dose is above the general upper limit of 40 mg and was used under study conditions.
Adults who have discussed eye supplements with an eye care professional, and anyone comparing a product with the AREDS2 amounts.
Products that call themselves AREDS-based but use different amounts, high-dose zinc without copper, and beta-carotene versions if you smoke.
A large NIH-funded trial of a vitamin and mineral formula for people with age-related macular degeneration. Its amounts are the benchmark for labels in this category.
Lutein with zeaxanthin is the core of AREDS2, but the trial formula included other nutrients too. Compare the label with the full list.
Products are ranked by SupplementScore, which evaluates label quality across four categories: dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts). The score is based on data from the NIH Dietary Supplement Label Database, not marketing claims.
No. The SupplementScore measures label quality, how transparent, clean, and well-documented a product is. It does not measure clinical efficacy, bioavailability, or third-party testing. A higher score means better label practices, not guaranteed results.
We analyzed 1,214 eye health products from the NIH DSLD database, which contains label data for over 116,000 dietary supplements sold in the United States.
This article is for information only and is not medical advice. Talk to a clinician before starting a supplement, especially if you are pregnant, take medication or have a health condition.
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Rankings reflect label quality scores (dosage transparency, cleanliness, ingredient profile) - not clinical efficacy. Read methodology