Comparison

SuperFlex-3 with Vitamin D and SuperFlex-4

SuperFlex-3 with Vitamin D (NewtonEverett) lists 4 distinct ingredients and SuperFlex-4 (NewtonEverett) 4 (rows of one ingredient counted once); 4 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)
IngredientSuperFlex-3 with Vitamin DSuperFlex-4
Vitamin D10 mcg (50%)10 mcg (50%)
Methylsulfonylmethane250 mg250 mg
Chondroitin Sulfate1,200 mg1,200 mg
Glucosamine Hydrochloride1.5 g1.5 g

Amounts are per serving as DSLD gives them: SuperFlex-3 with Vitamin D, 2 tablets; SuperFlex-4, 2 tablets. Current labels entered June 2014 and October 2017. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own