Comparison

Calcium Ascorbate and Buffered Vitamin C

Calcium Ascorbate (NOW) lists 2 distinct ingredients and Buffered Vitamin C (Jarrow Formulas) 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)
IngredientCalcium AscorbateBuffered Vitamin C
Vitamin C890 mg (989%)820 mg (911%)
Calcium100 mg (8%)100 mg (8%)

Amounts are per serving as DSLD gives them: Calcium Ascorbate, 0.25 tsp; Buffered Vitamin C, 1 tablet. Current labels entered October 2012 and December 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own