Everyone who launches a luxury beauty product wants to create something like Crème de la Mer, the 50-year-old moisturiser invented by a scientist — its eye-watering price justified in no small part by hand-harvested seaweed exposed to hours of classical music. Nobody in the contemporary age has come close, except for the French financier Charles Rosier.
Rosier’s project is better known by his partner, the German professor Augustinus Bader, who himself is better known by the luxury…

