Formula Twins
4,192 exact "Formula Twin" clusters found in the 2026-01-16 DSLD dump — identical formulas sold under multiple brand names. The largest: Super CoQ-10 100 mg (212 products across 91 brands).
4,192 exact-match clusters (identical compound/form/amount + serving size) and 4,545 looser near-twin clusters (identical compound/form set, amounts ignored).
Largest exact-formula clusters
Methodology
A "formula" is the sorted set of (compound, form, rounded elemental amount) tuples on a label plus its serving size. Products sharing an identical formula across at least two distinct brands form an exact-twin cluster — evidence of private-label / white-label manufacturing rather than a distinct formulation. The near-twin pass relaxes the match to compound+form only, ignoring declared amounts.
Every cluster with 25+ products
298 clusters are large enough to list here; the thousands of smaller ones are counted in the totals above but not given their own indexed page.