Comparison

Caffeine Maximum Potency 200 mg and Natrol High Caffeine 200 mg

Caffeine Maximum Potency 200 mg (Prolab) lists 2 distinct ingredients and Natrol High Caffeine 200 mg (Natrol) 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)
IngredientCaffeine Maximum Potency 200 mgNatrol High Caffeine 200 mg
Calcium75 mg (6%)75 mg (6%)
Caffeine200 mg200 mg

Amounts are per serving as DSLD gives them: Caffeine Maximum Potency 200 mg, 1 tablet; Natrol High Caffeine 200 mg, 1 tablet. Current labels entered April 2019 and June 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own