Comparison

L-Methionine 550 mg and L-Methionine 500 mg

L-Methionine 550 mg (BulkSupplements.com) lists 1 distinct ingredients and L-Methionine 500 mg (Best Naturals) 1 (rows of one ingredient counted once); 1 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)
IngredientL-Methionine 550 mgL-Methionine 500 mg
METHIONINE1,100 mg1,000 mg

Amounts are per serving as DSLD gives them: L-Methionine 550 mg, 2 capsules; L-Methionine 500 mg, 2 vcaps. Current labels entered October 2021 and June 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own