What the source provides

CosIng, the European Commission's informational database on cosmetic substances and ingredients, allows consulting nomenclature and functions associated with ingredients. The Commission warns that the database has an informational purpose and that its content has no legal value on its own. Therefore, finding a name in CosIng is not equivalent to an authorization for use or a general safety rating.

The usual function that appears in a data sheet describes the role attributed to the ingredient in cosmetics. It does not demonstrate that a specific product produces a determined result. For that, the finished formula and specific evidence about the product are important, aspects that a CosIng entry does not establish.

How to read it in your context

It is advisable to separate three questions: what name am I seeing?, what usual function is attributed to it? and what is claimed about the product that contains it? The first helps to identify; the second provides context; the third needs its own backing. A function associated with an ingredient does not confirm a brand promise, nor does it allow inferring clinical efficacy or suitability for a person.

As a reading exercise, note separately the name of the ingredient, the function indicated by the database, and the claim that appears on the packaging or the brand's communication. If you do not find evidence about the specific product in the available information, leave that conclusion open instead of turning the function into proof.

Questions to choose with discernment

  • Am I looking to identify a name or to know what the complete product does?
  • Does the consulted function describe a usual use of the ingredient or does it back a specific claim of the brand?
  • What specific information about the product is offered to support that claim?
  • Am I deducing that an ingredient suits me just because it appears in CosIng?

You can adapt these questions to any product and save the answers along with the claim you want to evaluate. If the information does not allow answering, that uncertainty is also useful: it indicates what cannot be concluded.

Limits of this guide

This guide is based on the description of CosIng published by the European Commission; it does not evaluate products, formulas, or results, and does not simulate tests or professional advice. The database serves to consult nomenclature and functions, not to conclude what effect a finished formula will have or if it is suitable for someone. For those conclusions, specific information would be needed, which is not provided here.