Disclosed is the use of the compounds (A) corresponding to formulawherein R1 represents C6-C24alkyl R2 is hydrogen or C1-C4alkyl R3 is a radical of formula (1a) *—(CH2)n1—R4 R4 is a heterocyclic or aromatic radical comprising 4 to 6 carbon atoms which can contain from 1 to 3 nitrogen and/or oxygen atoms n1 is a number from 0 to 5 or R2 and R3 together with the linking nitrogen atom form a heterocyclic radical comprising 4 to 6 carbon atoms which can contain one or more oxygen or nitrogen atomsas solubilizing agent for organic UV filters (B) selected from (B1) benzophenone derivatives, (B2) hydroxyphenyl triazine derivatives and (B3) trianilino-s-triazine derivatives.