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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Healthy Eyes

By 21st Century

4.7 (2.9K reviews)
Out of Stock
Supplement Ingredients
IngredientsAmount Per Serving
Vitamin C
Vitamin C
60 mg
Ascorbic Acid
Vitamin C
-
Vitamin E
Vitamin E
13.5 mg
dl-alpha tocopheryl acetate
Vitamin E
-
Zinc
Zinc
15 mg
Zinc Oxide
Zinc
-
copper
Copper
2 mg
cupric oxide
Copper
-
Crystalline Lutein
6 mg
Lutein
-
Zeaxanthin
-

Ingredient Research

Research Evidence

How this product's ingredient doses compare to doses studied in research.

  • Vitamin C60 mg
    Studies used 12–1,200 mg/day (median 250) across 15 studies
    Low end of studied doses
  • Vitamin E13.5 mg
    Studies used 5–1,200 mg/day (median 300) across 10 studies
    Low end of studied doses
    Form mismatch: this product uses Alpha-Tocopherol. Most research support uses α-Te (1 study).
  • Zinc15 mg
    Studies used 10–100 mg/day (median 55) across 2 studies
    Low end of studied doses

Research-supported combinations

Ingredient pairs in this product that have synthesised research evidence together.

  • Low evidenceVitamin E + Vitamin Cfor Reduced Pain· 3 studies

    Across 3 studies, all reported beneficial effects of the Vitamin E and Vitamin C combination on pain reduction, with effect sizes ranging from small to moderate and all findings statistically significant. Compared to Vitamin C alone (moderate evidence, small effect), the combination shows a similar directional benefit but the limited number of studies precludes a definitive comparison. The median study duration was 60 days (reported in 1 of 3 studies). No form data were reported for either substance.

Product Description

  • Supports Healthy Vision: Contains 6 mg of Crystalline Lutein, known for its role in maintaining eye health and filtering harmful blue light.
  • Protects Eye Cells: Vitamin C and E act as antioxidants, helping to neutralize free radicals that can damage eye cells.
  • Essential Mineral Blend: Includes Zinc (15 mg) and Copper (2 mg), crucial for eye maintenance and antioxidant defense.
  • Gluten-Free Formula: Ideal for those with gluten sensitivities, ensuring you get essential nutrients without compromising dietary needs.
  • Daily Eye Health Maintenance: Easy-to-take capsules designed for everyday use to help preserve vision and support overall eye comfort.

Other ingredients

  • maltodextrin
  • gelatin
  • magnesium silicate
  • gum arabic
  • silicon dioxide
  • cellulose
  • magnesium stearate
  • titanium dioxide

Free of

  • sugar
  • salt
  • yeast
  • preservatives

Serving Size: 1

Servings per Container: 60

Pill Type: Capsule

Flavor: -

UPC: 740985274545

Available From
Available From
MerchantPriceStockAction
Amazon
$9.01
In
iHerb
$9.01
In
Vitacost
$-
Out
Vitamin Shoppe
$-
Out

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