Comparison

C 1,000 mg and C' Plus

C 1,000 mg (Swanson) lists 2 distinct ingredients and C' Plus (Klaire Labs) 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.

Amount per serving (and % of the Daily Value)
IngredientC 1,000 mgC' Plus
Vitamin C2,111 mg (2346%)1,730 mg (1922%)
Flavonoid200 mg224 mg

Amounts are per serving as DSLD gives them: C 1,000 mg, 1 tablet; C' Plus, 2 capsules. Current labels entered December 2024 and July 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

  • C 1,000 mgSwanson: every row against all products listing it
  • C' PlusKlaire Labs: every row against all products listing it