Comparison

Collagen 1000 mg and Ultra Collagen 2500 mg

Collagen 1000 mg (Spring Valley) lists 6 distinct ingredients and Ultra Collagen 2500 mg (Meijer) 5 (rows of one ingredient counted once); 5 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 0.83.

Amount per serving (and % of the Daily Value)
IngredientCollagen 1000 mgUltra Collagen 2500 mg
Carbohydrate1 g1 g
Vitamin C30 mg (33%)60 mg (67%)
Sodium5 mg25 mg
Protein2 g2 g
Collagen3 g2.5 g
Fiber1 g

Amounts are per serving as DSLD gives them: Collagen 1000 mg, 3 tablets; Ultra Collagen 2500 mg, 3 tablets. Current labels entered November 2020 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