Cosmetic agents and methods for temporarily deforming keratinic fibers using the cosmetic agents are provided herein. In one embodiment, the cosmetic agent includes a cosmetic preparation. The cosmetic preparation contains at least one copolymer a1) constructed at least from the following monomer units: N-tert-octylacrylamide, acrylic acid, and tert-butylaminoethyl methacrylate. The cosmetic preparation further contains at least one copolymer a2) constructed at least from the following monomer units: N-tert-butylacrylamide, acrylic acid, and ethyl acrylate. The proportion by weight of copolymers a1) and a2) in the total weight of the cosmetic preparation is about 10 to about 30% by weight.
