Comparison

Betaine HCl Hydrochloric Acid with Pepsin and Hydrochloric Acid with Pepsin

Betaine HCl Hydrochloric Acid with Pepsin (Swanson) lists 2 distinct ingredients and Hydrochloric Acid with Pepsin (Swanson Premium Brand) 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)
IngredientBetaine HCl Hydrochloric Acid with PepsinHydrochloric Acid with Pepsin
Betaine Hydrochloride325 mg325 mg
Pepsin82 mg82 mg

Amounts are per serving as DSLD gives them: Betaine HCl Hydrochloric Acid with Pepsin, 1 capsule; Hydrochloric Acid with Pepsin, 1 capsule. Current labels entered February 2019 and April 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own