Comparison

B12 1000 mcg and Timed Release B-12 1000 mcg

B12 1000 mcg (Rexall Naturalist) lists 1 distinct ingredients and Timed Release B-12 1000 mcg (Vitamin World) 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)
IngredientB12 1000 mcgTimed Release B-12 1000 mcg
Vitamin B121,000 mcg (41667%)1,000 mcg (41667%)

Amounts are per serving as DSLD gives them: B12 1000 mcg, 1 tablet; Timed Release B-12 1000 mcg, 1 caplet. Current labels entered March 2017 and October 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own