Comparison

Extra Strength Flush-Free Niacin 750 mg and Flush Free Niacin 1000 mg

Extra Strength Flush-Free Niacin 750 mg (Mason Natural) lists 2 distinct ingredients and Flush Free Niacin 1000 mg (Vitamin World) 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)
IngredientExtra Strength Flush-Free Niacin 750 mgFlush Free Niacin 1000 mg
Niacin750 mg (4688%)800 mg (5000%)
Inositol211.5 mg200 mg

Amounts are per serving as DSLD gives them: Extra Strength Flush-Free Niacin 750 mg, 1 capsule; Flush Free Niacin 1000 mg, 1 capsule. Current labels entered October 2011 and April 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own