System Professional Repair Mask is a deep repair and restoration of strength mask for the most damaged of hair in just one application. It reduces breakage, provides smoothness and manageability, prevents mechanical damage and maintains visibly healthy hair. The mask contains key ingredients such as Hydrolysed Keratin, Optimised Quarternium Compounds, and Amino Acids. The Repair line is formulated with advanced FibraBuild molecules that are selective in where they act on the hair. This unique formula repairs, nourishes and instantly gives the hair long-term protection.