Sebastian Penetraitt Shampoo is a strengthening and reparative cleanser that rescues stressed, damaged hair. Formulated with a colour safe Active Rescue System, Penetraitt Shampoo repairs and reconstructs the hairs natural health and deeply penetrates the hair shaft to remove any stress and product build-up from the hair. Deeply conditioning, fortifying and strengthening, this professional shampoo is an essential cleansing step for truly damaged and over processed hair.