Comparison

Melatonin Spearmint Flavor and A.R. Formula

Melatonin Spearmint Flavor (Dr. Mercola) lists 2 distinct ingredients and A.R. Formula (Douglas Laboratories) 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)
IngredientMelatonin Spearmint FlavorA.R. Formula
Vitamin B63 mg (176%)0.5 mg (29%)
Niacin1.5 mg (9%)2 mg (13%)

Amounts are per serving as DSLD gives them: Melatonin Spearmint Flavor, 0.78 ml; A.R. Formula, 4 vegetarian capsules. Current labels entered August 2013 and October 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own