Comparison

Glucosamine Chondroitin Sulfate Plus MSM and Glucosamine, Chondroitin & MSM

Glucosamine Chondroitin Sulfate Plus MSM (Bluebonnet) lists 4 distinct ingredients and Glucosamine, Chondroitin & MSM (Doctor's A-Z) 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 0.89.

Amount per serving (and % of the Daily Value)
IngredientGlucosamine Chondroitin Sulfate Plus MSMGlucosamine, Chondroitin & MSM
Methylsulfonylmethane500 mg200 mg
Chondroitin Sulfate500 mg400 mg
Glucosamine Sulfate1 g0.5 g
Vitamin C500 mg (556%)

Amounts are per serving as DSLD gives them: Glucosamine Chondroitin Sulfate Plus MSM, 3 capsules; Glucosamine, Chondroitin & MSM, 1 tablet. Current labels entered July 2018 and December 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own