Comparison

Serra - 125K and Best High Potency Serrapeptase

Serra - 125K (Lyndon Fields) lists 2 distinct ingredients and Best High Potency Serrapeptase (Doctor's Best) 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)
IngredientSerra - 125KBest High Potency Serrapeptase
Calcium36 mg (3%)36 mg (3%)
Serratiopeptidase74 mgnot disclosed

Amounts are per serving as DSLD gives them: Serra - 125K, 1 capsule; Best High Potency Serrapeptase, 1 capsule. Current labels entered August 2021 and July 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own