If you learn to spot one thing on a supplement label, make it the proprietary blend. It is the most common way brands hide what you are actually paying for, it is entirely legal, and it is everywhere. Understanding it is the difference between evaluating a product on facts and trusting a marketing front. The good news is that once you know what to look for, it is unmissable.
What a proprietary blend is
A proprietary blend lists several ingredients grouped under a single combined weight. You might see something like Focus Blend 1,200 mg, followed by a list of five or six ingredients, but no individual amounts. The total is disclosed. The breakdown is not. So you have no way to know whether that 1,200 mg is mostly one cheap filler with a dusting of the expensive actives, or a genuinely balanced formula. The number tells you almost nothing useful.
Why brands use them
The official justification is protecting a secret recipe from competitors. That is rarely the real reason. Ingredient identities are listed anyway, in descending order by weight, so the actual recipe is hardly hidden. The practical reason blends exist is to conceal doses, specifically, to let a brand include just enough of an impressive-sounding ingredient to put it on the label, while keeping the costly stuff far below an effective amount. The blend hides the gap between what is advertised and what is delivered.
A proprietary blend lists several ingredients under one combined weight, hiding the individual doses. Its real purpose is usually to conceal how little of the expensive actives you get. The fix is simple: trust formulas that disclose every ingredient and its milligrams, and treat a blend as a reason to put the product down.
How it misleads in practice
Picture a product whose blend prominently features a premium nootropic. The label is technically truthful, the ingredient is present. But it might be present at a fraction of the dose any study used, padded out by cheap bulk ingredients listed first. You pay for the headline ingredient and receive a token amount of it. Because the blend hides the breakdown, you cannot catch the substitution. This is the entire point of the format, and it is why a big total weight on a blend should reassure you of nothing.
The fix: dose transparency
The remedy is straightforward. A trustworthy label discloses every ingredient and the exact amount of each, so you can compare those amounts to the doses used in research and decide for yourself. This is sometimes called a fully transparent or open-label formula. It is more demanding to produce, because there is nowhere to hide an underdosed ingredient, which is exactly why it is a strong signal of confidence. A brand that shows you every number is a brand that is not afraid of the comparison.
Why we refuse them
Thunder Honey Daylight uses no proprietary blends. Every one of its 11 actives has its own milligram amount on the label, from the 1,000 mg each of Lion's Mane, Cordyceps and Chaga to the 300 mg of nicotinamide riboside and the 250 mg of CDP-Choline. The whole premise of an honest dose collapses the moment you hide it, so we do not. If you can read the numbers, you can verify the value, and that is the only kind of trust worth asking for.
Proprietary blends hide individual doses behind a combined weight, usually to conceal how little of the good ingredients you get. The secret-recipe excuse does not hold up. Buy only fully transparent formulas that list every ingredient and amount, and treat a blend as a quiet admission that the brand would rather you not do the math.
References
- European Food Safety Authority (2023). Food supplement labelling guidance: declaration of ingredients and proprietary blends.
- Cohen, P. A. (2014). Hazards of hindsight: monitoring the safety of dietary supplements. New England Journal of Medicine, 370(14), 1277–1280.
- Crawford, C., et al. (2020). Select dietary supplement ingredients and label transparency. Journal of Dietary Supplements, 17(3), 271–283.
This article is for educational purposes and is not medical advice. Daylight is a food supplement. If you take prescription medication or are pregnant or breastfeeding, talk to your doctor before starting.
