The present invention relates to a method for achieving a shape memory effect, in which a cosmetic composition containing at least one polyurethane urea, which has transitions exclusively in the temperature range from -100℃ to 150℃, the transition temperature Ttrans of which is <20℃I) is applied to keratin fibres, II) before, simultaneously to or after the application to the keratin fibres these are brought into a specific shape and III) after a deformation of this specific shape the original specific shape is re-freshed again by energy supply.In addition, the present invention relates to the use of the cosmetic composition for achieving a shape memory effect in combination with keratin fibres.本發明關於一種用以達成形狀記憶效果之方法,其中一含有至少一種聚胺甲酸酯脲之化妝品組成物,其只在-100℃至150℃之溫度範圍具有轉移作用,其轉移溫度Ttrans為<20℃I)被施塗至角蛋白纖維,II)在施塗至該角蛋白纖維之前、同時或之後,該角蛋白纖維產生一特定形狀,及III)在此特定形狀變形之後,藉由能量供應使該原特定形狀再恢復。此外,本發明關於一種用於與角蛋白纖維組合以達成形狀記憶效果之化妝品組成物之用途。
