Comparison

Ester-C 500 mg With Citrus Bioflavoinds Timed Release and Buffered C with Bioflavonoids

Ester-C 500 mg With Citrus Bioflavoinds Timed Release (American Health) lists 3 distinct ingredients and Buffered C with Bioflavonoids (Swanson Premium Brand) 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 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientEster-C 500 mg With Citrus Bioflavoinds Timed ReleaseBuffered C with Bioflavonoids
Vitamin C500 mg (556%)500 mg (556%)
Calcium55 mg (4%)60 mg (5%)
Flavonoid200 mg200 mg

Amounts are per serving as DSLD gives them: Ester-C 500 mg With Citrus Bioflavoinds Timed Release, 1 vegetarian tablet; Buffered C with Bioflavonoids, 1 capsule. Current labels entered November 2011 and September 2019. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own