Cosmetic agents, containing in a cosmetically acceptable carrier a) at least one copolymer A with at least one structural unit (A1), at least one structural unit (A2), at least one structural unit (A3) and at least one structural unit (A4), wherein—R1 denotes an optionally heterofunctionalized alkyl residue；—R2 denotes an optionally heterofunctionalized alkyl residue differing from R1；—R3 denotes an optionally heterofunctionalized alkyl residue mutually independently differing from R1 and R2 b) at least one copolymer B differing from copolymer A with at least one structural unit (B1), wherein R4 denotes an optionally heterofunctionalized alkyl residue； and c) at least one copolymer C differing from copolymer A and copolymer B, prepared from—at least one monomer C1 selected from acrylic acid, methacrylic acid, acrylic acid alkyl ester and methacrylic acid alkyl ester, and at least one amphoteric monomer C2 selected from (meth)acryloyl alkyl amine oxides of formula C2-I and (meth)acryloyl alkyl betaines of formula C2-II, wherein in formula C2-I and in formula C2-II R1 denotes H or CH3, R2 and R3 in each case mutually independently denote optionally branched C1-10 alkyl and n denotes an integer from 1 to 20, are particularly suitable for temporarily deforming keratinic fibers.
