Comparison

B1 Thiamine Hydrochloride 100 mg and B-1 (Thiamin Hydrochloride) 100 mg

B1 Thiamine Hydrochloride 100 mg (Windmill Natural Vitamins) lists 2 distinct ingredients and B-1 (Thiamin Hydrochloride) 100 mg (Windmill Natural Vitamins) 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)
IngredientB1 Thiamine Hydrochloride 100 mgB-1 (Thiamin Hydrochloride) 100 mg
Calcium70 mg (5%)70 mg (5%)
Thiamin100 mg (8333%)100 mg (8333%)

Amounts are per serving as DSLD gives them: B1 Thiamine Hydrochloride 100 mg, 1 tablet; B-1 (Thiamin Hydrochloride) 100 mg, 1 tablet. Current labels entered February 2022 and July 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own