The Keratin Protect Protective Hair Mask by System Professional, with a volume of 200 ml, is an intensive treatment designed to strengthen and regenerate damaged hair. Enriched with keratin, it repairs the hair fiber from within, protecting against external agents and thermal stress. It provides softness, shine, and an extraordinary feeling of vitality una, making it easier to comb and maintaining natural elasticity. Ideal for those who want strong, healthy, and visibly regenerated hair, with a professional result with every application.