Comparison

Melatonin 3 mg and Melatonin 3.0 mg

Melatonin 3 mg (Source Naturals) lists 3 distinct ingredients and Melatonin 3.0 mg (Source Naturals) 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)
IngredientMelatonin 3 mgMelatonin 3.0 mg
Calcium30 mg (2%)33 mg (3%)
Vitamin B61 mg (59%)1 mg (59%)
Melatonin3 mg3 mg

Amounts are per serving as DSLD gives them: Melatonin 3 mg, 1 tablet; Melatonin 3.0 mg, 1 tablet. Current labels entered April 2017 and September 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own