Comparison

Extra Strength Glucosamine Chondroitin MSM with Ester-C and Cartilage Companion HP

Extra Strength Glucosamine Chondroitin MSM with Ester-C (Solgar) lists 6 distinct ingredients and Cartilage Companion HP (PhysioLogics) 5 (rows of one ingredient counted once); 5 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 0.91.

Amount per serving (and % of the Daily Value)
IngredientExtra Strength Glucosamine Chondroitin MSM with Ester-CCartilage Companion HP
Carbohydrate3 g2 g
Sodium120 mg100 mg
Methylsulfonylmethane700 mg500 mg
Chondroitin Sulfate1,200 mg1,200 mg
Glucosamine Sulfate1.5 g1.5 g
Vitamin C60 mg (67%)

Amounts are per serving as DSLD gives them: Extra Strength Glucosamine Chondroitin MSM with Ester-C, 3 tablets; Cartilage Companion HP, 3 tablets. Current labels entered April 2019 and February 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own