Mustela develops its products in strict accordance with the cosmetic regulations. In addition to these regulatory requirements, we have our own specific rules in order to guarantee the perfect harmlessness of our products. First, a committee of experts (toxicologists, pharmacists, and chemists) selects the ingredients in our formulas for their high tolerance. Next, we focus particularly to the conservative capacity of our products. Indeed, they are used in the warm and wet environment of bathrooms, which fosters the development of bacteria and mold. Each product integrates the safer and best adjusted conservation mode for its intended skin's type. Finally, before their launch on the market our products have been tested many times to ensure their efficacy, harmlessness and security. By choosing Mustela, you can be sure to enjoy safe and effective products week after week.