Comparison

B-1 Brewer's Yeast 1000 mg and Brewer's Yeast 450 mg

B-1 Brewer's Yeast 1000 mg (Remedys Nutrition) lists 2 distinct ingredients and Brewer's Yeast 450 mg (TerraVita) 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 0.75.

Amount per serving (and % of the Daily Value)
IngredientB-1 Brewer's Yeast 1000 mgBrewer's Yeast 450 mg
Brewer's Yeast900 mg450 mg
Thiamin100 mg (8333%)

Amounts are per serving as DSLD gives them: B-1 Brewer's Yeast 1000 mg, 1 vegan capsule; Brewer's Yeast 450 mg, 1 capsule. Current labels entered December 2020 and May 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own