Kerastase Serum Jeunesse created to increase Density, Volume, shine and manageability that was lost due to aging and graying process. Discover younger-looking hair with this easy to apply targeted spray. After the very first application, hair looks denser, more volumized, shinier and look more manageable from root to tip. Active ingredient Stemoxydine targets stem cells to promote hair growth by regenerating the roots and scalp, increasing hair density. Achieve fuller, manageable locks with enhanced shine and a silky smooth texture.