Comparison
Optimal B Complex and Active B Complex
Optimal B Complex (Neurobiologix) lists 8 distinct ingredients and Active B Complex (ProThera) 8 (rows of one ingredient counted once); 8 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | Optimal B Complex | Active B Complex |
|---|---|---|
| Vitamin B6 | 20 mg (1176%) | 20 mg (1176%) |
| Vitamin B12 | 500 mcg (20833%) | 500 mcg (20833%) |
| Niacin | 60 mg (375%) | 60 mg (375%) |
| Folate | 680 mcg DFE (170%) | 400 mcg |
| Pantothenic Acid (Vitamin B5) | 50 mg (1000%) | 50 mg (1000%) |
| Riboflavin | 20 mg (1538%) | 20 mg (1538%) |
| Thiamin | 50 mg (4167%) | 50 mg (4167%) |
| Biotin | 300 mcg (1000%) | 300 mcg (1000%) |
Amounts are per serving as DSLD gives them: Optimal B Complex, 1 capsule; Active B Complex, 1 capsule. Current labels entered May 2025 and February 2017. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Optimal B ComplexNeurobiologix: every row against all products listing it
- Active B ComplexProThera: every row against all products listing it