Comparison
Quantum-B and Quantum-B
Quantum-B (Health Thru Nutrition Naturally) lists 9 distinct ingredients and Quantum-B (StayWell) 9 (rows of one ingredient counted once); 9 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 | Quantum-B | Quantum-B |
|---|---|---|
| Vitamin B6 | 20 mg (1176%) | 20 mg (1176%) |
| Vitamin B12 | 250,000 mcg (10416667%) | 250 mcg (10417%) |
| Niacin | 50 mg (313%) | 50 mg (313%) |
| Folate | 1,333 mcg DFE (333%) | 800 mcg |
| Pantothenic Acid (Vitamin B5) | 50 mg (1000%) | 50 mg (1000%) |
| Riboflavin | 34 mg (2615%) | 34 mg (2615%) |
| Thiamin | 30 mg (2500%) | 30 mg (2500%) |
| Biotin | 300 mcg (1000%) | 300 mcg (1000%) |
| Choline | 550 mg (100%) | 550 mg (100%) |
Amounts are per serving as DSLD gives them: Quantum-B, 2 caplets; Quantum-B, 2 caplets. Current labels entered July 2020 and June 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.