The present invention relates to personal care compositions, especially hair care compositions, containing non-silicone, hydrophobic graft copolymers and a hydrophobic, volatile solvent for the copolymer, the solvent being selected from branched chain hydrocarbons, silicones and combinations thereof. This invention also relates to hair conditioners and hair styling products such as rinses, leave-on conditioners, and combination shampoo products useful for cleansing, styling and conditioning the hair. The graft polymers should satisfy the following three criteria: (1) the graft portion is covalently bonded to the polymeric backbone portion; (2) the molecular weight of the graft portion is at least about 500; and (3) when used in a composition, such as a personal care composition for application to the hair or skin, the polymeric backbone portion should permit the graft polymer to deposit on the intended surface, such as hair or skin. Preferred copolymers, when dried, phase-separate into a microphase which includes the graft portion and a microphase which includes the polymeric backbone portion.