One Daily, Maximum, 100 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin A (as Acetate & 20% as Beta-Carotene) | 750 mcg | 83% |
| Vitamin C (as Ascorbic Acid) | 60 mg | 67% |
| Vitamin D3 (as Cholecalciferol) (400 IU) | 10 mcg | 50% |
| Vitamin E (as dl-Alpha Tocopheryl Acetate) | 13.5 mg | 90% |
| Vitamin K (as Phytonadione) | 25 mcg | 21% |
| Thiamin (as Thiamin Mononitrate, B-1) | 1.5 mg | 125% |
| Riboflavin (Vitamin B-2) | 1.7 mg | 131% |
| Niacin (as Niacinamide) | 20 mg | 125% |
| Vitamin B6 (as Pyridoxine HCl) | 2 mg | 118% |
| Folate (400 mcg Folic Acid) | 667 mcg DFE | 167% |
| Vitamin B-12 (as Cyanocobalamin) | 6 mcg | 250% |
| Biotin | 30 mcg | 100% |
| Pantothenic Acid (as d-Calcium Pantothenate) | 10 mg | 200% |
| Calcium (as Calcium Carbonate & Dicalcium Phosphate) | 162 mg | 12% |
| Iron (as Ferrous Fumarate) | 18 mg | 100% |
| Phosphorus (as Dicalcium Phosphate) | 109 mg | 9% |
| Iodine (as Potassium Iodide) | 150 mcg | 100% |
| Magnesium (as Magnesium Oxide) | 100 mg | 24% |
| Zinc (as Zinc Oxide) | 15 mg | 136% |
| Selenium (as Sodium Selenate) | 20 mcg | 36% |
| Copper (as Copper Sulfate) | 2 mg | 222% |
| Manganese (as Manganese Sulfate) | 3.5 mg | 152% |
| Chromium (as Chromium Chloride) | 65 mcg | 186% |
| Molybdenum (as Sodium Molybdate) | 160 mcg | 355% |
| Chloride (as Potassium Chloride) | 72 mg | 3% |
| Potassium (as Potassium Chloride) | 80 mg | 2% |
| Boron (as Sodium Borate) | 150 mcg | ** |
| Tin (as Stannous Chloride) | 10 mcg | ** |
| Silicon (as Silicon Dioxide) | 2 mg | ** |
| Vanadium (as Sodium Metavanadate) | 10 mcg | ** |
Bioavailability Fair
Absorption Rating
- Vitamin A (as Acetate & 20% as Beta-Carotene) Fair
- Vitamin C (as Ascorbic Acid) Fair
- Vitamin D3 (as Cholecalciferol) (400 IU) Good
- Vitamin E (as dl-Alpha Tocopheryl Acetate) Poor
- Vitamin K (as Phytonadione) Fair
- Thiamin (as Thiamin Mononitrate, B-1) Fair
- Riboflavin (Vitamin B-2) Good
- Niacin (as Niacinamide) Good
- Vitamin B6 (as Pyridoxine HCl) Fair
- Folate (400 mcg Folic Acid) Fair
- Vitamin B-12 (as Cyanocobalamin) Fair
- Biotin Good
- Pantothenic Acid (as d-Calcium Pantothenate) Good
- Calcium (as Calcium Carbonate & Dicalcium Phosphate) Fair
- Iron (as Ferrous Fumarate) Fair
- Phosphorus (as Dicalcium Phosphate) Good
- Iodine (as Potassium Iodide) Good
- Magnesium (as Magnesium Oxide) Poor
- Zinc (as Zinc Oxide) Poor
- Selenium (as Sodium Selenate) Fair
- Copper (as Copper Sulfate) Fair
- Manganese (as Manganese Sulfate) Good
- Chromium (as Chromium Chloride) Poor
- Molybdenum (as Sodium Molybdate) Good
- Chloride (as Potassium Chloride) Good
- Potassium (as Potassium Chloride) Good
- Boron (as Sodium Borate) Fair
- Tin (as Stannous Chloride) Poor
- Silicon (as Silicon Dioxide) Poor
- Vanadium (as Sodium Metavanadate) Poor
Other Ingredients Very Poor
Fillers & Additives
- Cellulose
- Stearic Acid
- Artificial colors (fd&c blue #2 carmine, fd&c red #40) High
- Croscarmellose Sodium
- Gelatin
- Magnesium Silicate
- Magnesium Stearate
- PEG Medium
- Polyvinyl Alcohol
- Starch
- Titanium Dioxide High
Efficacy Fair
Dosage Analysis
- Vitamin A (as Acetate & 20% as Beta-Carotene) 750 mcg Effective
- Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
- Vitamin D3 (as Cholecalciferol) (400 IU) 10 mcg Under-dosed
- Vitamin E (as dl-Alpha Tocopheryl Acetate) 13.5 mg Under-dosed
- Vitamin K (as Phytonadione) 25 mcg Under-dosed
- Thiamin (as Thiamin Mononitrate, B-1) 1.5 mg Effective
- Riboflavin (Vitamin B-2) 1.7 mg Effective
- Niacin (as Niacinamide) 20 mg Effective
- Vitamin B6 (as Pyridoxine HCl) 2 mg Effective
- Folate (400 mcg Folic Acid) 667 mcg DFE Effective
- Vitamin B-12 (as Cyanocobalamin) 6 mcg Effective
- Biotin 30 mcg Effective
- Pantothenic Acid (as d-Calcium Pantothenate) 10 mg Effective
- Calcium (as Calcium Carbonate & Dicalcium Phosphate) 162 mg Under-dosed
- Iron (as Ferrous Fumarate) 18 mg Effective
- Phosphorus (as Dicalcium Phosphate) 109 mg Under-dosed
- Iodine (as Potassium Iodide) 150 mcg Effective
- Magnesium (as Magnesium Oxide) 100 mg Under-dosed
- Zinc (as Zinc Oxide) 15 mg Effective
- Selenium (as Sodium Selenate) 20 mcg Under-dosed
- Copper (as Copper Sulfate) 2 mg Effective
- Manganese (as Manganese Sulfate) 3.5 mg Effective
- Chromium (as Chromium Chloride) 65 mcg Effective
- Molybdenum (as Sodium Molybdate) 160 mcg Effective
- Chloride (as Potassium Chloride) 72 mg Under-dosed
- Potassium (as Potassium Chloride) 80 mg Under-dosed
- Boron (as Sodium Borate) 150 mcg Under-dosed
- Silicon (as Silicon Dioxide) 2 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin A (as Acetate & 20% as Beta-Carotene) | 750 mcg | 83% |
| Vitamin C (as Ascorbic Acid) | 60 mg | 67% |
| Vitamin D3 (as Cholecalciferol) (400 IU) | 10 mcg | 50% |
| Vitamin E (as dl-Alpha Tocopheryl Acetate) | 13.5 mg | 90% |
| Vitamin K (as Phytonadione) | 25 mcg | 21% |
| Thiamin (as Thiamin Mononitrate, B-1) | 1.5 mg | 125% |
| Riboflavin (Vitamin B-2) | 1.7 mg | 131% |
| Niacin (as Niacinamide) | 20 mg | 125% |
| Vitamin B6 (as Pyridoxine HCl) | 2 mg | 118% |
| Folate (400 mcg Folic Acid) | 667 mcg DFE | 167% |
| Vitamin B-12 (as Cyanocobalamin) | 6 mcg | 250% |
| Biotin | 30 mcg | 100% |
| Pantothenic Acid (as d-Calcium Pantothenate) | 10 mg | 200% |
| Calcium (as Calcium Carbonate & Dicalcium Phosphate) | 162 mg | 12% |
| Iron (as Ferrous Fumarate) | 18 mg | 100% |
| Phosphorus (as Dicalcium Phosphate) | 109 mg | 9% |
| Iodine (as Potassium Iodide) | 150 mcg | 100% |
| Magnesium (as Magnesium Oxide) | 100 mg | 24% |
| Zinc (as Zinc Oxide) | 15 mg | 136% |
| Selenium (as Sodium Selenate) | 20 mcg | 36% |
| Copper (as Copper Sulfate) | 2 mg | 222% |
| Manganese (as Manganese Sulfate) | 3.5 mg | 152% |
| Chromium (as Chromium Chloride) | 65 mcg | 186% |
| Molybdenum (as Sodium Molybdate) | 160 mcg | 355% |
| Chloride (as Potassium Chloride) | 72 mg | 3% |
| Potassium (as Potassium Chloride) | 80 mg | 2% |
| Boron (as Sodium Borate) | 150 mcg | ** |
| Tin (as Stannous Chloride) | 10 mcg | ** |
| Silicon (as Silicon Dioxide) | 2 mg | ** |
| Vanadium (as Sodium Metavanadate) | 10 mcg | ** |
Other Ingredients
Cellulose Safe
Stearic Acid Safe
Gelatin Safe
Magnesium Silicate Generally_safe
Magnesium Stearate Safe
PEG Caution
Polyvinyl Alcohol Generally_safe
Starch Generally_safe
Titanium Dioxide Caution
Price Comparison
Price History
Tracked across major retailers. Updated periodically.
Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.
Is 21st Century One Daily, Maximum a good supplement?
21st Century One Daily, Maximum, 100 Tablets received a product quality score of 53/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 30 active ingredients Of the 11 inactive ingredients, 5 are rated safe and 2 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 One Daily, Maximum?
21st Century One Daily, Maximum contains 30 active ingredients: Vitamin A (as Acetate & 20% as Beta-Carotene) (750 mcg), Vitamin C (as Ascorbic Acid) (60 mg), Vitamin D3 (as Cholecalciferol) (400 IU) (10 mcg), Vitamin E (as dl-Alpha Tocopheryl Acetate) (13.5 mg), Vitamin K (as Phytonadione) (25 mcg), Thiamin (as Thiamin Mononitrate, B-1) (1.5 mg), and 24 more. Notable high-dose ingredients include Vitamin B-12 at 250% DV, Copper at 222% DV, Molybdenum at 355% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century One Daily, Maximum safe to take?
21st Century One Daily, Maximum, 100 Tablets has been analyzed for ingredient safety across all its components. Of 11 inactive ingredients, 5 are rated safe. 2 ingredients are flagged for review: PEG, Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. 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.
Scan Any Supplement Instantly
Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.