Analysis
One formula, many brand names: identical supplement labels
2,044 formulas of four or more ingredients appear, ingredient for ingredient and amount for amount, under two or more brand names, covering 6,154 products (DSLD version 9.4.0, January 2026). The most repeated is sold under 45 brand names across 82 products, among them Apple Cider Vinegar Gummies Apple Flavor (Purely Optimal).
Published by PlainVitamins on ; written with AI tools under the editorial policy, every figure computed from the label database.
Which formulas are sold under the most brand names?
32,813 products give an amount for every ingredient on a label of four or more; 6,154 of them share their exact formula with a product of another brand. The 25 formulas sold under the most brand names:
Every product page lists its closest formulas under "Products with the closest formula".
Source: NIH ODS Dietary Supplement Label Database version 9.4.0, current labels. Download the data (CSV).
How this was measured
For every product whose current label gives an amount for each of four or more ingredients, the ingredient list with its amounts (rounded to four significant figures, in a common measure) forms a signature. Signatures shared by products of two or more brands are counted.
Limits
Identical label amounts do not prove a common manufacturer, and different labels can come from one maker. Labels with any undisclosed amount are left out, so blends are not compared.
Sources
The data
One row per shared formula: brands, products, ingredients, an example product and its brand. Download the CSV. How the labels are grouped and read: methodology.
Other analyses
- Supplement labels above the adult upper limit, nutrient by nutrientWhich nutrients most often pass the adult Tolerable Upper Intake Level at the most servings a label allows, and on which products.
- How supplement amounts compare with the Daily ValueFor each nutrient with an FDA Daily Value: the amount the typical product lists per serving, and how many products give five times the DV or more.
- Proprietary blends: how many supplement labels do not disclose their amountsHow many products list a proprietary blend whose ingredient amounts are not disclosed, by product type and by brand.
- Vitamin D amounts on supplement labels, by yearHow the amount of vitamin D per serving has moved on labels entered into the NIH database each year since 2011.
- Which forms of magnesium, B12, folate and other nutrients supplements useOxide or glycinate, cyanocobalamin or methylcobalamin: how many products list each form of twelve nutrients, and at what amounts.
- Gummies, tablets, capsules: how amounts differ by physical formThe median amount per serving of ten common nutrients in gummies, tablets, capsules, softgels, liquids and powders.