ABSTRACT: Cosmetic preservation is increasingly under pressure. Industry sensitivity towards the toxicology of biocides has been raised. Europe and the U.S. have started re-evaluating the safety of cosmetic preservatives. As more cosmetic manufacturers want to go »global«, the public debate around the world regarding traditional cosmetic preservatives limits the options available to cosmetic manufacturers. Cosmetic formulators are realising the need for alternative approaches to product protection. To meet these market requirements Euxyl® PE 9010, a new concept in preserving cosmetics, has been introduced. In the following article, the antimicrobial efficacy of Euxyl® PE 9010 is compared to a traditional preservative mixture for leave-on cosmetics.