Densifique Serum Jeunesse is a concentrated hair serum from Kérastase designed to enhance hair density and restore youthful vitality. This lightweight formula helps improve hair quality and thickness while providing essential nourishment to both scalp and strands. Key features: • Lightweight serum texture • Helps improve hair density • Nourishes scalp and hair • Easy spray applicator • Professional salon quality formula The serum comes in an elegant silver bottle with a convenient spray applicator for targeted application. For best results, spray directly onto towel-dried or dry hair, focusing on areas that need enhanced density. Can be used daily as part of a hair care routine. The formula absorbs quickly without leaving residue or weighing hair down.