Sebastian Penetraitt Reconstructive Protein Treatment 5.1 oz - As more people chemically-treat and over-style their hair, the need to restore hair back to health becomes immense. Sebastian delivers an incredible hair reconstruction treatment. Sebastian Penetraitt "penetrates" deep into damaged hair with a protein-injected formula to help rescue and restore strength, elasticity, shine and condition. So go ahead, play with your hair all you want! Sebastian Penetraitt is the original instant at home spa.