Comparison
Vitamin C 1000 mg and Ester-C 24 Hour Immune Support 500 mg
Vitamin C 1000 mg (Spring Valley) lists 10 distinct ingredients and Ester-C 24 Hour Immune Support 500 mg (NatureSmart) 10 (rows of one ingredient counted once); 10 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 | Vitamin C 1000 mg | Ester-C 24 Hour Immune Support 500 mg |
|---|---|---|
| Vitamin C | 1,000 mg (1111%) | 1,000 mg (1111%) |
| Calcium | 110 mg (8%) | 110 mg (8%) |
| Flavonoid | 204 mg | 204 mg |
| Rutin | not disclosed | not disclosed |
| Acerola | not disclosed | not disclosed |
| Hesperidin | not disclosed | not disclosed |
| Lemon | not disclosed | not disclosed |
| Sweet Orange | not disclosed | not disclosed |
| Tangerine | not disclosed | not disclosed |
| Lime | not disclosed | not disclosed |
Amounts are per serving as DSLD gives them: Vitamin C 1000 mg, 2 tablets; Ester-C 24 Hour Immune Support 500 mg, 2 tablets. Current labels entered April 2017 and October 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Vitamin C 1000 mgSpring Valley: every row against all products listing it
- Ester-C 24 Hour Immune Support 500 mgNatureSmart: every row against all products listing it