Sebastian Professional Penetraitt Duo This shampoo & conditioner duo from Sebastian Professional is ideal for dry, damaged hair that's in need of some TLC. The Penetraitt Duo boasts two of Sebastian Professional's finest products that combine to give you nourished, hydrated & silky soft hair. Providing essential care for overstyled or chemically treated hair, this Penetraitt Duo is a must have. This set contains the following products: Sebastian Professional Penetraitt Shampoo (250ml) Sebastian Professional Penetraitt Conditioner (250ml)