Comparison
C-1000 Plus and Vitamin-C Extended Release 1000 mg
C-1000 Plus (Progressive Professional from Progressive Laboratories) lists 7 distinct ingredients and Vitamin-C Extended Release 1000 mg (Nova Nutritions) 5 (rows of one ingredient counted once); 4 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 0.46.
| Ingredient | C-1000 Plus | Vitamin-C Extended Release 1000 mg |
|---|---|---|
| Vitamin C | 1,000 mg (1111%) | 1,000 mg (1111%) |
| Flavonoid | 1,000 mg | not disclosed |
| Rutin | 100 mg | not disclosed |
| Rose Hip | not disclosed | not disclosed |
| Capsicum | not disclosed | |
| Acai | not disclosed | |
| Acerola | not disclosed | |
| Spleen | not disclosed |
Amounts are per serving as DSLD gives them: C-1000 Plus, 3 capsules; Vitamin-C Extended Release 1000 mg, 1 tablet. Current labels entered January 2025 and June 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- C-1000 PlusProgressive Professional from Progressive Laboratories: every row against all products listing it
- Vitamin-C Extended Release 1000 mgNova Nutritions: every row against all products listing it