Comparison

Ester-C 500 Plus Bioflavonoids and Natural Citrus Bioflavonoids

Ester-C 500 Plus Bioflavonoids (Bluebonnet) lists 9 distinct ingredients and Natural Citrus Bioflavonoids (DC) 7 (rows of one ingredient counted once); 7 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 0.93.

Amount per serving (and % of the Daily Value)
IngredientEster-C 500 Plus BioflavonoidsNatural Citrus Bioflavonoids
Flavonoid250 mg1,000 mg
Hesperidin30 mgnot disclosed
Naringenin3 mgnot disclosed
Flavones8 mgnot disclosed
Eriocitrin23 mgnot disclosed
Flavonols63 mgnot disclosed
Flavanones75 mgnot disclosed
Vitamin C500 mg (556%)
Calcium50 mg (4%)

Amounts are per serving as DSLD gives them: Ester-C 500 Plus Bioflavonoids, 1 caplet; Natural Citrus Bioflavonoids, 1 tablet. Current labels entered December 2011 and June 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own