Proprietary Blends: Why Supplement Labels Hide Amounts

If you have ever looked at a supplement label and found a list of ingredients under one combined milligram figure, you have met a proprietary blend. Understanding what that structure conceals is one of the most useful skills a supplement buyer can develop.

What a proprietary blend is

US labelling rules require a dietary supplement to list its ingredients, but they permit ingredients to be grouped into a proprietary blend where only the total weight of the blend is disclosed. So a label might read Cognitive Support Blend 750mg, followed by six ingredient names in descending order of weight. You know all six are present. You know they add up to 750mg. You have no idea whether the first ingredient is 700mg and the rest are traces, or whether they are evenly split. Ingredients must still be listed in descending order by weight, which is the one piece of information the structure preserves.

Why manufacturers use them

There are two stated reasons and one unstated one. The stated reasons are formula protection, so competitors cannot replicate the ratios, and flexibility to adjust amounts between batches. Both are real considerations. The unstated reason is that a blend allows a small quantity of an expensive, well-marketed ingredient to sit alongside a large quantity of a cheap filler while the label still names both. This practice, sometimes called fairy dusting, is the reason the structure attracts so much criticism from informed buyers.

How to read one

Look at the ingredient order first, since descending weight order is guaranteed. If the ingredients you actually care about appear near the end of a long list, be sceptical. Compare the total blend weight against the research doses for the headline ingredients: if a single studied ingredient normally requires 500mg and the entire blend is 400mg, the arithmetic tells you something. And ask the company directly for the amounts. Some will tell you. A company that refuses to disclose amounts even on request has told you something useful about how it views its customers.

Where NeuronGold fits in

If you are researching supplements in this area, NeuronGold is a liquid formula built around five named ingredients — GABA, L-Glutamine, L-Tryptophan, Eleutherococcus senticosus and L-Carnitine Base. It provides antioxidant support for brain and nerve cells and nutrient support for focus, learning, concentration, memory and attention. It contains no caffeine and no stimulant. Per-serving amounts are not published, which is a genuine limitation we cover in detail in our label transparency review. The NeuronGold official website lists current pricing and the 60-day guarantee.