Use of at least one agent chosen from cyclodextrins and the derivatives thereof as a pearlescent agent, in a composition, for example, a pearlescent cosmetic composition, comprising a physiologically acceptable aqueous medium. Use of at least one agent chosen from cyclodextrins and the derivatives thereof and at least one surfactant in compositions. Pearlescent compositions comprising, a physiologically acceptable aqueous medium, at least one agent chosen from cyclodextrins and the derivatives thereof, at least one surfactant, and at least one conditioning agent; as well as use of at least one agent chosen from cyclodextrins and the derivatives thereof as an agent for suspending an insoluble conditioning agent; wherein the compositions disclosed herein may be used in a form chosen, for example, from rinse-out products, for example, for washing and/or conditioning a keratinous material.