Kérastase Genesis Homme Bain de Masse Épaississant Thickening Shampoo for Men 250mlThickening shampoo for men with weakened hair prone to thinning. This luxurious formula cleanses the scalp, hair, and beard while hydrating to achieve healthy, soft hair. Used in a complete Genesis Homme routine, it adds volume and body to thinning hair. Enriched with creatine and ginger root, it strengthens hair to prevent breakage, while providing an instantly thickening action for fuller looking hair.