Chris Isaak | Isaak Dunayevsky | Isaak Brodsky | Title page of a biography of '''Isaak Markus Jost''' by Heinrich Zirndorf | The Chris Isaak Show | Lifschutz Davidson Sandilands | Dawit Isaak |
It was from a recommendation by Unna, that Troplowitz hire Isaak Lifschütz, a chemist who was the discoverer of the emulsifying agent Eucerit, the main ingredient in Nivea.