Comparison
Buffered Vitamin C and Non-Acid Vitamin C-500
Buffered Vitamin C (Freeda) lists 2 distinct ingredients and Non-Acid Vitamin C-500 (Windmill) 2 (rows of one ingredient counted once); 2 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 | Buffered Vitamin C | Non-Acid Vitamin C-500 |
|---|---|---|
| Vitamin C | 500 mg (556%) | 500 mg (556%) |
| Calcium | 50 mg (4%) | 50 mg (4%) |
Amounts are per serving as DSLD gives them: Buffered Vitamin C, 1 vegetable capsule; Non-Acid Vitamin C-500, 1 tablet. Current labels entered December 2021 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
- Buffered Vitamin CFreeda: every row against all products listing it
- Non-Acid Vitamin C-500Windmill: every row against all products listing it