Comparison

Calcium & Magnesium Citrate Powder with Vitamin D3 and Cal-Mag 1:1 With Vitamin D3

Calcium & Magnesium Citrate Powder with Vitamin D3 (NOW) lists 3 distinct ingredients and Cal-Mag 1:1 With Vitamin D3 (VitaCeutical Labs) 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)
IngredientCalcium & Magnesium Citrate Powder with Vitamin D3Cal-Mag 1:1 With Vitamin D3
Calcium400 mg (31%)375 mg (29%)
Vitamin D5 mcg (25%)5 mcg (25%)
Magnesium400 mg (95%)375 mg (89%)

Amounts are per serving as DSLD gives them: Calcium & Magnesium Citrate Powder with Vitamin D3, 1.5 tsp; Cal-Mag 1:1 With Vitamin D3, 3 capsules. Current labels entered July 2019 and November 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own