Use of sunscreen combinations which comprise, as essential constituent, 2-(4-alkoxyanilinomethylene)malonic dialkyl esters as photostable UV filters in cosmetic and pharmaceutical preparations A) compound absorbing essentially in the UV-A region and B) further compounds absorbing in the UV-A region, in the UV-B region and over both regions,  where the constituent absorbing in the UV-A region consists of A) effective amounts of at least one of the compounds of the formula I  in which the substituents R1 to R3, independently of one another, are C1-C8-alkyl as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin and human hair against solar rays.