The invention relates to light-protective cosmetic or dermatological preparations that contain (a) at least one hydroxy-benzophenone, and (b) at last one dialkyl naphthalate of the structural formula (I), wherein R.sup.1 and R.sup.2 are independently selected form the group of the branched and unbranched alkyl groups that have 6 to 24 carbon atoms. The invention further relates to the use of said formulations ##STR00001##