Comparison
Melatonin 1 mg and Melatonin 3 mg
Melatonin 1 mg (Source Naturals) lists 2 distinct ingredients and Melatonin 3 mg (21st Century) 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.
| Ingredient | Melatonin 1 mg | Melatonin 3 mg |
|---|---|---|
| Calcium | 90 mg (7%) | 94 mg (7%) |
| Melatonin | 3 mg | 3 mg |
Amounts are per serving as DSLD gives them: Melatonin 1 mg, 3 tablets; Melatonin 3 mg, 1 tablet. Current labels entered August 2023 and December 2023. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Melatonin 1 mgSource Naturals: every row against all products listing it
- Melatonin 3 mg21st Century: every row against all products listing it