The Kerastase Genesis Bain Nutri-Fortifiant is a fortifying shampoo formulated to address hair concerns related to breakage and loss. It gently cleanses the scalp and fibers, helping to restore strength and thickness to the hair. This shampoo is ideal for daily use, providing essential nourishment without weighing the hair down. It prepares the hair for subsequent treatments in the Genesis routine, optimizing the environment for healthy hair growth and resilience against future damage.