What is a Proprietary Blend? Why EX1 Will Never Use One.
A proprietary blend lists the total weight of several ingredients but hides each individual dose. Here is why that is the labelling pattern to avoid.
A proprietary blend is a labelling pattern where a supplement lists a group of ingredients together, with a single total milligram weight for the whole group, but does not declare how much of each ingredient is actually in the bottle. The law permits it. The scientific literature can't use it. Recognising it is the single biggest readability win on a supplement label.
A proprietary blend declares only the combined weight of several ingredients, hiding the individual doses.A label might read “Energy Matrix: 700 mg” followed by a list of six herbs, with no per-ingredient amounts. The 700 mg could be 695 mg of a low-cost filler ingredient and 1 mg each of five marketing-friendly extracts, or it could be a clinical-grade formulation, the label gives you no way to tell. Indian FSSAI regulations and US FDA labelling rules both permit this practice as long as the total weight is disclosed. They do not require per-ingredient transparency.
The cost of that opacity is real. Clinical trials measure specific doses of specific compounds. 600 mg of withanolide-standardised ashwagandha root extract, 5 g of micronised creatine monohydrate, 300 mg of CoQ10. When a label tells you the total weight of a ten-ingredient blend without breaking it out, you cannot verify that any single ingredient is within the studied range. You are being asked to trust the brand instead of the chemistry. For a category where the difference between a clinically meaningful dose and a placebo is often a 5x difference in milligrams, that trust is structurally misplaced.
How to spot a proprietary blend on a label: look for any group of ingredients listed together with a single total weight (often marketed as a “matrix”, “complex”, “system”, or “formula”) without per-ingredient milligrams shown next to each name. If the total is stated but the individual doses are not, you cannot evaluate the product against the clinical literature.
Transparent labelling is a different choice. Every active ingredient gets its own line, its own milligram declaration, its own percentage of the daily value where one exists. This is the format used in every peer-reviewed nutrition trial and the format that lets a buyer compare two products on identical terms. It costs more, since the brand cannot hide low-cost filler ingredients behind a blend total, and it commits the formulation to the dose on the label, every batch, forever.
EX1 will not use proprietary blends on any product, ever. Every active ingredient on every label has its own milligram declaration and percentage of RDA where one is established. Per-batch testing verifies the printed dose matches the bottle contents. Whether you're reading Multivitamin Men, Calcium + D3 + K2, or Lean Metabolism, the per-serving declaration shows every active by name and dose. The bottle matches the laboratory description.
Related reading: How to read an ashwagandha label.