Comparison

R3 Extra Strength and Matrix 5000 Extended-Release

R3 Extra Strength (elon) lists 4 distinct ingredients and Matrix 5000 Extended-Release (elon) 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 0.69.

Amount per serving (and % of the Daily Value)
IngredientR3 Extra StrengthMatrix 5000 Extended-Release
Biotin5,000 mcg (16667%)5,000 mcg (16667%)
Silicon100 mg10 mg
Cysteine50 mg50 mg
Collagen Peptides0.6 g

Amounts are per serving as DSLD gives them: R3 Extra Strength, 2 tablets; Matrix 5000 Extended-Release, 1 tablet. Current labels entered August 2023 and August 2021. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own