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21st Century Healthy Eyes Lutein & Zeaxanthin

Backed by 7 studies

Overall grade based on research across 4 ingredients.

A
86out of 100Grade A
Research evidence score

Weighed against 7 published studies · led by Vitamin C

Strong pick. Vitamin C, Vitamin E and Zinc (+1 more) have real research behind them.

Based on the ingredients we could read from this scan. A full label may include more — like added sugars, colorings or other ingredients — than we captured here.

How the ingredients work together

Known interactions from published nutrition research — separate from the evidence grade.

44 of 4 nutrients at a meaningful dose (≥20% Daily Value).
Vitamin C + Vitamin EWork together

Vitamin C regenerates oxidized vitamin E, recycling its antioxidant capacity.

Zinc balanced with CopperWork together

Long-term zinc supplementation depletes copper; including copper alongside zinc is the textbook-correct formulation.

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Ingredient breakdown

A
Vitamin CSupports immune function and antioxidant defense
Research: Established essential nutrientDaily Value: 67%Dose: 60 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin EProtects against oxidative damage
Research: Established essential nutrientDaily Value: 90%Dose: 13.5 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
ZincSupports immune function and testosterone
Research: Established essential nutrientDaily Value: 136%Dose: 15 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
CopperSupports iron metabolism and connective tissue
Research: Established essential nutrientDaily Value: 222%Dose: 2 mgEvidence strength: Established nutrient — this product provides a meaningful dose

This summary describes only the ingredients and the research behind them — it is not a judgment of the product or its marketing. Grades reflect the weight of published evidence cross-referenced against 350M+ research papers. How we grade →

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