Understanding Ingredient Transparency

Transparency is not the same thing as quality, but it is a precondition for evaluating quality. Without knowing how much of an ingredient a serving contains, there is no way to compare one formula against another, or against the amounts described in published research.

Some brands publish full per-ingredient disclosure. Others use a proprietary blend, which is permitted, but which limits what any reader — including us — can conclude. When we describe a product's transparency, we are describing the information available, not making a judgement about safety or effectiveness.

Sourcing and manufacturing information is a second layer. Details such as where a product is manufactured, whether third-party testing is performed, and how batches are identified help a consumer understand the process behind the bottle. When those details are not published, we say so rather than assuming either way.

A note on scope

This guide is general educational information and not medical advice. Read our methodology to see how we assess products, and our affiliate disclosure for how this site is funded.