B-Complex
21st Century B-Complex provides a combination of B vitamins including Thiamine, Riboflavin, Niacin, B6, Folate, and B12, along with Calcium. This supplement has an N+ Score of 76, indicating a good quality product. It is formulated to deliver key B vitamins.
About This Product
B-Complex by 21st Century is a joint & bone supplement containing 7 active ingredients. It has earned an N+ Score of 76/100 (Grade C+).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Thiamine, Riboflavin, Niacin and 3 more.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +Broad ingredient diversity exceeding category norms
- +6 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (7 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Thiamine | 1.500 mg | Optimal |
| Riboflavin | 1.700 mg | Optimal |
| Niacin | 20.000 mg | Optimal |
| Vitamin B6 | 2.000 mg | Optimal |
| Folate | 667.000 mcg DFE | Optimal |
| Vitamin B12 | 6.000 mcg | Optimal |
| Calcium | 125.000 mg | Under |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.