Healthy Eyes, Extra With Lutein, Zinc & Vitamin B, 36 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin A (100% as Beta-Carotene) | 300 mcg | 33% |
| Vitamin C (as Ascorbic Acid) | 300 mg | 333% |
| Vitamin E (as d-Alpha Tocopheryl Acetate) | 45 mg | 300% |
| Riboflavin (Vitamin B-2) | 3 mg | 231% |
| Niacin (as Niacinamide, Vitamin B-3) | 40 mg | 250% |
| Calcium (as Calcium Carbonate & Dicalcium Phosphate) | 107 mg | 8% |
| Zinc (as Zinc Oxide) | 40 mg | 364% |
| Selenium (as Sodium Selenate) | 55 mcg | 100% |
| Copper (as Cupric Oxide) | 2 mg | 222% |
| Manganese (as Manganese Sulfate) | 5 mg | 217% |
| L-Glutathione | 5 mg | ** |
| Lutein | 2 mg | ** |
Bioavailability Good
Absorption Rating
- Vitamin A (100% as Beta-Carotene) Fair
- Vitamin C (as Ascorbic Acid) Fair
- Vitamin E (as d-Alpha Tocopheryl Acetate) Good
- Riboflavin (Vitamin B-2) Good
- Niacin (as Niacinamide, Vitamin B-3) Good
- Calcium (as Calcium Carbonate & Dicalcium Phosphate) Fair
- Zinc (as Zinc Oxide) Poor
- Selenium (as Sodium Selenate) Fair
- Copper (as Cupric Oxide) Poor
- Manganese (as Manganese Sulfate) Good
- L-Glutathione Fair
- Lutein Good
Other Ingredients Excellent
Fillers & Additives
- Cellulose
- Gelatin
- Stearic Acid
- Starch
Efficacy Good
Dosage Analysis
- Vitamin A (100% as Beta-Carotene) 300 mcg Under-dosed
- Vitamin C (as Ascorbic Acid) 300 mg Effective
- Vitamin E (as d-Alpha Tocopheryl Acetate) 45 mg Effective
- Riboflavin (Vitamin B-2) 3 mg Effective
- Niacin (as Niacinamide, Vitamin B-3) 40 mg High
- Calcium (as Calcium Carbonate & Dicalcium Phosphate) 107 mg Under-dosed
- Zinc (as Zinc Oxide) 40 mg Effective
- Selenium (as Sodium Selenate) 55 mcg Effective
- Copper (as Cupric Oxide) 2 mg Effective
- Manganese (as Manganese Sulfate) 5 mg Effective
- L-Glutathione 5 mg Under-dosed
- Lutein 2 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin A (100% as Beta-Carotene) | 300 mcg | 33% |
| Vitamin C (as Ascorbic Acid) | 300 mg | 333% |
| Vitamin E (as d-Alpha Tocopheryl Acetate) | 45 mg | 300% |
| Riboflavin (Vitamin B-2) | 3 mg | 231% |
| Niacin (as Niacinamide, Vitamin B-3) | 40 mg | 250% |
| Calcium (as Calcium Carbonate & Dicalcium Phosphate) | 107 mg | 8% |
| Zinc (as Zinc Oxide) | 40 mg | 364% |
| Selenium (as Sodium Selenate) | 55 mcg | 100% |
| Copper (as Cupric Oxide) | 2 mg | 222% |
| Manganese (as Manganese Sulfate) | 5 mg | 217% |
| L-Glutathione | 5 mg | ** |
| Lutein | 2 mg | ** |
Other Ingredients
Price Comparison
Price History
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Is 21st Century Healthy Eyes, Extra With Lutein a good supplement?
21st Century Healthy Eyes, Extra With Lutein, Zinc & Vitamin B, 36 Tablets received a product quality score of 81/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 12 active ingredients Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, 21st Century, holds a brand trust score of 76/100 with 2 verified certifications including Consumerlab, Nsf Gmp.
What are the ingredients in 21st Century Healthy Eyes, Extra With Lutein?
21st Century Healthy Eyes, Extra With Lutein contains 12 active ingredients: Vitamin A (100% as Beta-Carotene) (300 mcg), Vitamin C (as Ascorbic Acid) (300 mg), Vitamin E (as d-Alpha Tocopheryl Acetate) (45 mg), Riboflavin (Vitamin B-2) (3 mg), Niacin (as Niacinamide, Vitamin B-3) (40 mg), Calcium (as Calcium Carbonate & Dicalcium Phosphate) (107 mg), and 6 more. Notable high-dose ingredients include Vitamin C at 333% DV, Vitamin E at 300% DV, Riboflavin at 231% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century Healthy Eyes, Extra With Lutein safe to take?
21st Century Healthy Eyes, Extra With Lutein, Zinc & Vitamin B, 36 Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.
Is 21st Century a trustworthy supplement brand?
21st Century receives a brand trust score of 76/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Tempe, Arizona, United States, the company offers 231 products in their lineup. They hold 2 verified certifications including Consumerlab, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: 21st Century has 4 historical regulatory incidents on record, which are factored into the trust score.
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How much magnesium per day?
The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.
What is zinc good for?
Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.
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