Comparison

C 1000 mg and Vitamin C with Bioflavonoids

C 1000 mg (Kirkland Signature) lists 2 distinct ingredients and Vitamin C with Bioflavonoids (Bronson Laboratories) 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 1000 mgVitamin C with Bioflavonoids
Vitamin C1,000 mg (1111%)1,000 mg (1111%)
Flavonoid100 mg100 mg

Amounts are per serving as DSLD gives them: C 1000 mg, 1 tablet; Vitamin C with Bioflavonoids, 0.25 tsp. Current labels entered December 2022 and April 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own