D3 + K2, 120 Capsules
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D3(as Cholecalciferol)(500IU) | 125 mcg | 625% |
| Vitamin K2(as Menaquinone-7) (MK-7) | 100 mcg | ** |
Bioavailability Excellent
Absorption Rating
- Vitamin D3(as Cholecalciferol)(500IU) Good
- Vitamin K2(as Menaquinone-7) (MK-7) Good
Other Ingredients Fair
Fillers & Additives
No inactive ingredient data available.
Efficacy Very Good
Dosage Analysis
- Vitamin D3(as Cholecalciferol)(500IU) 125 mcg High
- Vitamin K2(as Menaquinone-7) (MK-7) 100 mcg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin D3(as Cholecalciferol)(500IU) | 125 mcg | 625% |
| Vitamin K2(as Menaquinone-7) (MK-7) | 100 mcg | ** |
Price Comparison
Price History
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Is 21st Century D3 + K2, 120 Capsules a good supplement?
21st Century D3 + K2, 120 Capsules received a product quality score of 84/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients 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 D3 + K2, 120 Capsules?
21st Century D3 + K2, 120 Capsules contains 2 active ingredients: Vitamin D3(as Cholecalciferol)(500IU) (125 mcg), Vitamin K2(as Menaquinone-7) (MK-7) (100 mcg). Notable high-dose ingredients include Vitamin D3 at 625% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century D3 + K2, 120 Capsules safe to take?
21st Century D3 + K2, 120 Capsules 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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