A multi-phase liquid agent for the non-chemical smoothing and de-curling of keratin fibers, in particular human hair, which has an aqueous-alcoholic phase and a non-aqueous phase existing separately therefrom and which can be applied as a spray, and a method for non-chemical smoothing or de-curling of keratin fibers using the agent. Alcohols, particularly ethanol or isopropanol, may be present in the compositons. A liquid care substance is also present in the composition and is selected from protein hydrolyzates, quaternary ammonium compounds or qlycerin. In preferred embodiments, the care substance is a protein hydrolyzate. Preferably, the oil phases contains cyclopentasiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, hexamethyldisiloxane or cyclohexasiloxane. Most preferably the oil phase comprises cyclopentasiloxane or octamethyltrisiloxane. Preferably the compositions contain no formaldehyde and no keratin reducing agents.
