Customers expect better and more targeted care, which makes them look younger and healthier for longer. The desire for a care product tailored to one's own skin or hair type opens up many new possibilities in the cosmetics industry: from facial care, which can be individually mixed through the involvement of consumers in product development and new intelligent technology, which is simple and fast The needs of consumers are registered and responded to - the cosmetics industry responds by means of various measures and products to the well-known trend. Kiehl's, a brand of L'Oréal Paris, also launched a personalized skin care series called Kiehl's Apothecary Preparations in the USA. After a conversation with a specialist in the Kiehl's Shop and a detailed analysis of the skin, the customer receives a skin-strengthening concentrate and two formulations adapted to his own skin type. Before the first application, the consumer mixes the two formulations under the concentrate to obtain their individual product. For highly concentrated formulations, such as those from Kiehl's, which contain the ingredient hydrocarbons, child-resistant packaging is mandatory in the USA. For this reason and because of its good barrier as well as the ergonomic cannula, Kiehl's opted for our 13.5 mm diameter Polyfoil® cannula tube with child-resistant closure. Not only the certified child-resistant closure, but also the simple application of the tube convinced Kiehl's and his customers.