Cosmetic and/or dermatological composition comprises at least one solubilized form of an imido-carboxylic acid compound (I) in an aqueous medium, and a solvent derivative of 4-carboxy-2-pyrrolidinone compound (II). Cosmetic and/or dermatological composition comprises at least one solubilized form of an imido-carboxylic acid compound of formula (I) or its salt in an aqueous medium, and a solvent derivative of 4-carboxy-2-pyrrolidinone compound of formula (II) or its salt, optical isomer, stereoisomer, enantiomer, diastereoisomers or geometric isomer. Ring A1 : a benzene ring optionally substituted by one or more, preferably 1 or 2 (1-5C)alkyl； and m : 1-12, preferably 1-6； R3 : H or linear 1-20C-alkyl or branched 3-20C-alkyl； R4 : linear 1-20C-alkyl, branched 3-20C-alkyl, 5-6C-cyclolalkyl or 5-6C-aryl, where the alkyl, cycloalkyl or aryl is optionally substituted by 1 or 2 1-5C-alkyl or phenyl； and R5, R6 : H, linear 1-12C-alkyl or branched 3-12C-alkyl. An independent claim is included for a non-therapeutic cosmetic process for treating oily skin comprising applying a fat composition, which is the cosmetic and/or dermatological composition on the skin. [Image] ACTIVITY : Dermatological. MECHANISM OF ACTION : None given.
