
In spite of all our efforts to develop perfectly safe and well-tolerated products, some skins are more reactive than others and may exceptionally have an undesirable reaction. In this case, you should send us an e-mail.
You will very quickly be reminded by an independent professional specialist of cosmetovigilance . He will try to determine with you the reason for this intolerance and will ask you to return the product that has caused a reaction in order to begin an investigation.
Effectively, we take any undesirable effect that is reported to us very seriously indeed and when it occurs, the incriminated products are immediately analysed to check their compliance. Independent scientists are then asked to identify the source of the problem and assess the eventual role of the Mustela product or one of its ingredients.
Every one of our products has a lot number guaranteeing its traceability: we can thus go back over the entire production chain right back to raw materials, even after several years.