Comparison
Vitamin C 500 mg Plus Grape Seed and Quercetin 250 mg
Vitamin C 500 mg Plus Grape Seed (Quest) lists 4 distinct ingredients and Quercetin 250 mg (BIOVEA) 3 (rows of one ingredient counted once); 3 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 0.74.
| Ingredient | Vitamin C 500 mg Plus Grape Seed | Quercetin 250 mg |
|---|---|---|
| Vitamin C | 500 mg (556%) | 1,000 mg (1111%) |
| Flavonoid | 50 mg | 25 mg |
| Quercetin | 5 mg | 500 mg |
| Grape | 16.7 mg |
Amounts are per serving as DSLD gives them: Vitamin C 500 mg Plus Grape Seed, 1 tablet; Quercetin 250 mg, 2 vegetarian capsules. Current labels entered July 2013 and October 2019. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Vitamin C 500 mg Plus Grape SeedQuest: every row against all products listing it
- Quercetin 250 mgBIOVEA: every row against all products listing it