The present invention is a cosmetic assembly for use in the treatment of keratin fibers, comprising at least particles in a dispersed state in a liquid medium, and a fluid cosmetic composition capable of solidifying through aggregation of the particles, A device (1) comprising a mold (2) comprising one cavity (5), wherein the fluid cosmetic composition is on at least a portion of the keratin fibers present in one or more cavities (5). For shaping purposes, it is intended for a cosmetic assembly comprising a device (1) into which at least one of said keratin fibers can be introduced at least partially into each of one or more cavities. The present invention is also directed to a method for cosmetic treatment of one or more keratin fibers.本発明は、ケラチン繊維の処置に使用される化粧用アセンブリであって、少なくとも粒子を分散状態で液体媒体中に含有し、前記粒子の凝集を介して固化可能な流体化粧用組成物と、少なくとも1つのキャビティ(5)を含む型(2)を含むデバイス(1)であって、前記流体化粧用組成物を1つ又は複数のキャビティ(5)内に存在する前記ケラチン繊維の少なくとも一部分上に成形する目的で、1つ又は複数のキャビティの各々の中に前記ケラチン繊維のうちの少なくとも1つが少なくとも部分的に導入されうるデバイス(1)とを含む、化粧用アセンブリを対象とする。本発明はまた、1つ又は複数のケラチン繊維の美容処置のための方法を対象とする。
