Cosmetic agents, in some embodiments in powder form, containing as component (a) at least one polymer comprising at least one structural unit of formula (I) and at least one structural unit of formula (II), in which X denotes a physiologically acceptable cation (in particular Na+), R1 denotes a hydrogen atom or a methyl group and R2 denotes a (C2 to C6) hydroxyalkyl group, and as component (b) at least one setting polymer, are suitable for temporarily reshaping keratin-containing fibers. When applied to human hair, for example, an elastic hairstyle with volume was obtained. The hair retained its natural gloss.