Comparison
Optimum-C Formula and Ester-C 1000 mg
Optimum-C Formula (Bluebonnet) lists 8 distinct ingredients and Ester-C 1000 mg (Vitabase) 7 (rows of one ingredient counted once); 7 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 0.89.
| Ingredient | Optimum-C Formula | Ester-C 1000 mg |
|---|---|---|
| Vitamin C | 1,000 mg (1111%) | 1,000 mg (1111%) |
| Calcium | 94 mg (7%) | 125 mg (10%) |
| Flavonoid | 500 mg | 200 mg |
| Rutin | 50 mg | 25 mg |
| Acerola | 10 mg | 25 mg |
| Hesperidin | 200 mg | 25 mg |
| Rose (unspecified) | 10 mg | 25 mg |
| Grape | 100 mg |
Amounts are per serving as DSLD gives them: Optimum-C Formula, 2 capsules; Ester-C 1000 mg, 1 tablet. Current labels entered January 2023 and March 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Optimum-C FormulaBluebonnet: every row against all products listing it
- Ester-C 1000 mgVitabase: every row against all products listing it