Suppose a supplier offers a new ingredient and the brief says, “Find out whether it is good for our moisturiser.” Before ordering a trial, the formulator needs to know what the ingredient is expected to improve.

“Will it reduce the tack we observe in prototype M-12?” gives the team something it can compare. “Is it good?” leaves the benefit, product, and test undefined.

Identify the material you would actually buy

A study may name an ingredient without identifying the commercial grade now being offered. Ask for the supplier’s product code, complete composition, and current specification. If the ingredient arrives as a solution or blend, distinguish the amount supplied from the amount of the component being investigated.

For example, in a hypothetical trial, adding 2% of a 10% solution supplies 0.2% of that component to the formula. Adding 2% of a pure material would be a different experiment.

Check what the supplier’s study measured

If a supplier cites a study, find out what was tested. Was it the raw material, a mixture, or a finished moisturiser? What was the comparison, how much was applied, and what was measured?

A hydration result does not automatically answer a question about tack. A favourable result in one moisturiser can justify investigating another, but the new formula still needs its own assessment.

Write a trial question you can answer

For our invented moisturiser project, a trial brief might say:

Compare M-12 with a version containing the candidate grade. Describe every formula change and compare residual tack under the same application conditions. Check whether the change affects the other properties required by the brief.

The testing team would then choose a sensory method for that comparison.

Check suitability for the proposed use separately. The Commission’s CosIng introduction explains that a database entry is information, not proof of approval for cosmetic use. A promising trial also does not replace the safety and regulatory assessment.

The trial note should answer the tack question for M-12. Record whether the ingredient helped, what else changed, and whether the prototype met the remaining requirements.