Comparison

B100 Complex and Mega B-100 Vitamin B Complex Timed-Release

B100 Complex (Webber Naturals) lists 10 distinct ingredients and Mega B-100 Vitamin B Complex Timed-Release (Quest) 10 (rows of one ingredient counted once); 10 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)
IngredientB100 ComplexMega B-100 Vitamin B Complex Timed-Release
Vitamin B6100 mg (5882%)100 mg (5882%)
Vitamin B12100 mcg (4167%)100 mcg (4167%)
Niacin100 mg (625%)100 mg (625%)
Folate1,000 mcg1,000 mcg
Pantothenic Acid (Vitamin B5)100 mg (2000%)100 mg (2000%)
Riboflavin100 mg (7692%)100 mg (7692%)
Thiamin100 mg (8333%)100 mg (8333%)
Biotin100 mcg (333%)100 mcg (333%)
Choline100 mg (18%)100 mg (18%)
Inositol100 mg100 mg

Amounts are per serving as DSLD gives them: B100 Complex, 1 tablet; Mega B-100 Vitamin B Complex Timed-Release, 1 tablet. Current labels entered May 2014 and July 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own