Comparison

No. 52 Magnesium-Potassium Complex and B-50 Complex

No. 52 Magnesium-Potassium Complex (Wachters') lists 10 distinct ingredients and B-50 Complex (PhysioLogics) 12 (rows of one ingredient counted once); 7 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 0.46.

Amount per serving (and % of the Daily Value)
IngredientNo. 52 Magnesium-Potassium ComplexB-50 Complex
Vitamin B625 mg (1471%)55 mg (3235%)
Magnesium100 mg (24%)24 mg (6%)
Riboflavin10 mg (769%)55 mg (4231%)
Thiamin10 mg (833%)50 mg (4167%)
Choline25 mg (5%)21 mg (4%)
Inositol25 mg50 mg
Lecithinnot disclosed50 mg
Vitamin B1250 mcg (2083%)
Niacin50 mg (313%)
Potassium99 mg (2%)
Folate400 mcg
Pantothenic Acid (Vitamin B5)55 mg (1100%)
Biotin50 mcg (167%)
Flavonoidnot disclosed
Chlorophyllnot disclosed

Amounts are per serving as DSLD gives them: No. 52 Magnesium-Potassium Complex, 1 tablet; B-50 Complex, 1 tablet. Current labels entered June 2013 and January 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own