Supplement Brands Using Proprietary Blends
Full list of 0 brands that use proprietary blends — ingredient mixtures where individual dosages are hidden behind a single combined weight. Sorted by trust score.
Proprietary Blend Summary
- Brands Using Blends
- 0
- % of Database
- 0%
- Transparent Brands
- 7,882 (100%)
- With Cert Anyway
- 0
- Avg Trust (Blend)
- 0/100
- Avg Trust (Transparent)
- 64.3/100
- Transparency Gap
- 64.3 points higher for transparent brands
0 of 7,882 supplement brands in our database (0%) use proprietary blends in at least one product. Brands that disclose full ingredient amounts average 64.3 points higher on our trust score than blend-using brands. For background on what proprietary blends are and why they matter, read our proprietary blends explainer.
All 0 Brands
Sorted by trust score. Click any brand for the full safety report.
Showing brands
| Brand | Certifications | Recalls | Details |
|---|---|---|---|
| NSF USP Informed Sport Informed Choice GMP only None | Clean | View trust report → | |
| No brands match your filters. | |||
Frequently Asked Questions
How many supplement brands use proprietary blends?
Of the 7,882 brands in our database, 0 (0%) use proprietary blends in at least one product. The remaining 7,882 brands (100%) disclose individual ingredient amounts.
Are proprietary blends legal?
Yes. FDA labeling rules allow supplement manufacturers to list ingredients in a "proprietary blend" under a single combined weight, without disclosing the amount of each individual ingredient. The stated justification is trade secret protection, but the practical effect is that consumers cannot verify whether each ingredient is dosed effectively.
Why are proprietary blends considered a red flag?
Research-backed doses of popular ingredients are expensive. When a brand hides individual doses inside a proprietary blend, it is often a sign that one or more ingredients are underdosed below the level shown to be effective in clinical studies. In our trust-score algorithm, use of proprietary blends incurs a penalty because it reduces transparency.
Do any certified brands still use proprietary blends?
Yes — 0 of the 0 brands using proprietary blends still hold a recognized third-party certification (NSF, USP, Informed Sport, or Informed Choice). Certification verifies identity, purity, and potency of the ingredients the brand chose to list — it does not mean those ingredients are dosed effectively.
What is the average trust score for brands using proprietary blends?
Brands using proprietary blends average 0/100, compared with 64.3/100 for brands that disclose full ingredient amounts — a gap of 64.3 points. The gap reflects the transparency penalty built into our trust-score algorithm.
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