PROVIDED IS A COMPOSITION FOR PREPARING EMULSION OR MICROEMULSION FORMULATIONS THAT DEMONSTRATES FAVORABLE DILUTION PROPERTIES WITHOUT BEING AFFECTED BY THE SOLUBILITIES OF CONSTITUENT COMPONENTS. THE COMPOSITION FOR PREPARING EMULSION OR MICROEMULSION FORMULATIONS CONTAINS A COMPONENT (A) : A POLYOXYALKYLENE ALLYL PHENYL ETHER, POLYOXYALKYLENE ARALKYL PHENYL ETHER OR POLYOXYALKYLENE ARALKENYL PHENYL ETHER, A COMPONENT (B) : A POLYOXYALKYLENE SORBITAN ALKYLATE, A COMPONENT (C) : A DIALKYLSULFOSUCCINATE, AND A COMPONENT (D) : AN ESTER ETHER-BASED SOLVENT. AN EMULSION OR MICROEMULSION FORMULATION CONTAINING THE COMPOSITION IS ALSO PROVIDED.