Comparison

MSM Methylsulfonylmethane 1000 mg and MSM 500 mg

MSM Methylsulfonylmethane 1000 mg (PhysioLogics) lists 2 distinct ingredients and MSM 500 mg (Country Life) 2 (rows of one ingredient counted once); 2 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)
IngredientMSM Methylsulfonylmethane 1000 mgMSM 500 mg
Methylsulfonylmethane1,000 mg1,000 mg
Sulfur340 mg340 mg

Amounts are per serving as DSLD gives them: MSM Methylsulfonylmethane 1000 mg, 1 capsule; MSM 500 mg, 2 tablets. Current labels entered December 2013 and March 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own