Comparison

Slippery Elm Lozenges With Vitamin C & Echinacea and Vitamin C with Echinacea

Slippery Elm Lozenges With Vitamin C & Echinacea (Swanson Premium Brand) lists 3 distinct ingredients and Vitamin C with Echinacea (Amazon Elements) 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 0.56.

Amount per serving (and % of the Daily Value)
IngredientSlippery Elm Lozenges With Vitamin C & EchinaceaVitamin C with Echinacea
Vitamin C100 mg (111%)60 mg (67%)
Echinacea purpurea100 mg400 mg
Slippery Elm150 mg

Amounts are per serving as DSLD gives them: Slippery Elm Lozenges With Vitamin C & Echinacea, 1 lozenge; Vitamin C with Echinacea, 1 capsule. Current labels entered July 2018 and June 2019. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own