Comparison

C-500 with Wild Rose Hips Plus Echinacea and C-500 mg with Echinacea 100 mg

C-500 with Wild Rose Hips Plus Echinacea (Puritan's Pride) lists 3 distinct ingredients and C-500 mg with Echinacea 100 mg (PhysioLogics) 3 (rows of one ingredient counted once); 3 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)
IngredientC-500 with Wild Rose Hips Plus EchinaceaC-500 mg with Echinacea 100 mg
Vitamin C500 mg (556%)500 mg (556%)
Dog Rose15 mg15 mg
Echinacea100 mg100 mg

Amounts are per serving as DSLD gives them: C-500 with Wild Rose Hips Plus Echinacea, 1 caplet; C-500 mg with Echinacea 100 mg, 1 tablet. Current labels entered May 2023 and December 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own