CogniMary Blog
Proprietary Blends Explained: Why 635 mg Across Eleven Ingredients Matters
By the CogniMary Team · Medically reviewed by Dr. Harald Hampel, MD, PhD · Published March 4, 2026 · Revised September 30, 2026 · 1,309 words
A proprietary blend is a group of ingredients declared as a single total weight with no individual amounts. US law allows it, the ingredients must be listed in descending order by weight, and that order is the only clue you get. When a blend is 635 mg and holds eleven ingredients, a single studied dose of the best-evidenced one would use nearly half of it.
What a proprietary blend actually is
Turn any supplement bottle around and you will find two kinds of line on the Supplement Facts panel. The first kind names an ingredient and gives its amount: Magnesium (as magnesium oxide) 250 mg. The second kind names a blend, gives one total weight, and then lists ingredients underneath with no numbers at all.
That second kind is a proprietary blend. It is a legal device that lets a manufacturer declare what is in a product without declaring how much of each. The stated reason is trade secrecy: a competitor who knows your exact ratios can copy your formula. The practical effect is that nobody outside the factory, including your doctor and including the person selling it to you, can tell you what dose you are taking.
Why this is legal
US labelling rules require every dietary ingredient to be declared. They do not require every amount. A blend may be declared as a single total, provided the ingredients inside it are listed in descending order by weight and the total is given.
Where a nutrient has an official reference intake, the panel must also print a percent Daily Value. Blends have no reference intake, which is why the blend line carries a dagger or double dagger pointing at a footnote reading Daily Value not established. That footnote is not a warning. It is a statement that there is no official number to compare against.
None of this is a loophole being exploited by bad actors. It is the rule, it applies to everyone, and the great majority of multi-ingredient supplements on sale in the United States use it.
The one clue you do get: descending order
The descending order requirement is genuinely useful and almost universally ignored by buyers. It means the first ingredient listed inside a blend weighs at least as much as the second, the second at least as much as the third, and so on down.
So if a blend leads with cinnamon and ends with zeaxanthin, you know cinnamon is the largest single component and zeaxanthin the smallest. You know the expensive, heavily-marketed ingredient sitting in position nine is present in smaller quantity than the eight before it.
What the order cannot tell you is the gaps. A blend could be 60 percent its first ingredient or 12 percent, and the printed panel looks exactly the same either way. The order narrows the possibilities. It does not resolve them.
The one-minute arithmetic
Here is the whole method, and it takes about a minute.
Find the blend total. Count the ingredients inside it. Look up the dose used in human research for the first one or two named, because those are the largest by weight. Then ask whether that dose could fit.
If a single studied dose of the leading ingredient would consume half the blend, then the other ten are sharing what is left. If a studied dose of the leading ingredient would exceed the entire blend, then even the leading ingredient is under-dosed, and everything below it is decorative.
This is not a sophisticated technique. It is arithmetic, and the reason it works is that the effective doses in most supplement categories are large relative to what a capsule can physically hold.
A worked example: 635 mg, eleven ingredients
Take a real example: a 635 mg blend containing eleven ingredients, in this order — cinnamon, ginkgo biloba, bilberry, bacopa monnieri, green tea extract, berberine HCl, L-theanine, alpha lipoic acid, GPC choline, lutein and zeaxanthin.
Now the commonly studied doses of four of those:
| Ingredient | Usual studied dose | Share of a 635 mg blend |
|---|---|---|
| Bacopa monnieri, standardized extract | about 300 mg a day | 47% |
| Ginkgo biloba extract | 120 to 240 mg a day | 19% to 38% |
| GPC choline (alpha-GPC) | 400 to 1,200 mg a day | 63% to 189% |
| Alpha lipoic acid | 300 to 600 mg a day | 47% to 94% |
Add just bacopa at 300 mg, ginkgo at 120 mg and alpha-GPC at 400 mg, and you are at 820 mg. The blend is 635 mg and has seven more ingredients to fit in.
The conclusion is unavoidable and it does not require any inside knowledge: at least some ingredients in that blend are present below the amounts used in the research that made them worth including. Which ones, and by how much, remains unknowable. But the direction is certain.
Reading this because you are weighing up CogniMary?
The full label, the honest dose analysis and the 60-day guarantee terms are all on the product pages.
The case for blends, put fairly
It would be unfair to leave it there, because there are real arguments on the other side and they deserve stating.
Trade secrecy is a genuine concern. Developing a formula costs money and publishing exact ratios hands that work to anyone with a contract manufacturer. Whether that justifies the cost to the buyer is a judgement, but the concern is not invented.
Some ingredients work at small amounts. Not everything needs 300 mg. Standardized extracts concentrate active compounds precisely so that less material does more, and a high-grade extract at 50 mg can outperform milled leaf powder at 500 mg.
A blend is not evidence of a bad product. It is evidence of an unevaluable one. Those are different claims, and conflating them is as sloppy as ignoring the problem.
The alternative has a cost too. Fully disclosed labels usually carry fewer ingredients, because there is nowhere to hide. Some buyers genuinely prefer a longer list, even knowing what it implies.
How to read any blend in under a minute
Three habits will change how you read every supplement label you pick up.
Count declared against hidden. Before anything else, count how many actives carry a printed amount and how many sit inside a blend. Four against eleven tells you most of the product is unevaluable. Fifteen against zero tells you the manufacturer chose disclosure.
Read the first blend ingredient as the headline. It is the largest by weight, so it is the one the formula is actually built around, whatever the marketing leads with.
Treat the last three as trace. By the time you reach position nine, ten and eleven of a blend, you are looking at ingredients included so that the name appears on the label. That is not fraud. It is marketing, and it is worth recognising.
The bottom line
A proprietary blend is not illegal, not unusual and not proof of anything sinister. It is a decision to give you less information than the manufacturer has, and that decision has a cost that lands entirely on you.
The practical response is not to boycott every product with a blend, because that would rule out most of several categories. It is to price the blend accordingly: judge the product on the ingredients it does declare, treat the blend as an unpriced bonus, and never pay a premium for a name you cannot quantify.
And when a product does disclose everything, notice it. That is a manufacturer telling you it is confident enough in its doses to let you check them.
References
- National Center for Complementary and Integrative Health. Ginkgo. https://www.nccih.nih.gov/health/ginkgo
- U.S. Food and Drug Administration. Questions and Answers on Dietary Supplements. https://www.fda.gov/food/information-consumers-using-dietary-supplements/questions-and-answers-dietary-supplements
Every source above was opened and checked again for the September 30, 2026 revision. None of them tested CogniMary itself. They describe the named nutrients and plants, which is a different thing from testing this finished formula.