Sebastian Penetraitt Shampoo 1L +pump & Gift Bag. Cleanse and strengthen damaged hair with Sebastian Professional Penetraitt Shampoo. This professional hair product with an active rescue system deeply penetrates the hair, helping to remove impurities and reduce breakage. Sebastian repair shampoo strengthens weak hair against damage due to chemical treatments, heat and environmental elements. It leaves stressed hair clean, soft and bouncy and is recommended for enhancing the radiance and richness of colour-treated hair