Kerastase Genesis Masque Reconstituant

Intense fortifying hair mask for weakened hair that is prone to falling due to breakage from brushing. For weekly use. "Provides intense nourishment & hydration. Smooths & detangles. Fortifies against breakage. 99% less hair fall due to breakage from brushing*. 89% more smooth/conditioned**Genesis is not a hair loss product.*vs. non-conditioning shampoo.**vs. non-conditioning shampoo.