Women prefer sun creams, eye shadow and hairsprays that are solvent- and preservative-free. The high-purity polyurethanes in the Baycusan™ product range from Bayer MaterialScience make this possible. These raw materials not only make cosmetics as gentle as possible; they also meet all the requirements of green chemistry: production of Baycusan™ is not only particularly energy-efficient and environmentally friendly, innovative reaction procedures also help to avoid refuse and ensure sterility. In the cleanroom at the Baycusan™ production facility in Dormagen, chemical production technician Ömer Yildirim (left, with Marcus Schuster in the background) prepares a special filter for the production of top-quality raw materials for cosmetics.