HAIR TYPE: Colour-Treated Hair, Weak Hair / Strengthen stressed hair against damage with Sebastian Professional Penetraitt Masque. This professional hair treatment provides deep repair to weak hair, fortifying chemically treated hair when it is most vulnerable. Sebastian mask with its active rescue system leaves dry, dull hair soft and shiny and is recommended for enhancing the radiance and richness of colour treated hair. Directions of use Remove excess water from hair. Apply the mask through the hair, saturating evenly. Focus on the most damaged areas. Leave in for 2-3 minutes then rinse thoroughly. Result Repairing mask for stressed, damaged and coloured hair. Protects hair against stress caused by chemicals and heat damage. Deep repair for a superstrong and silky-soft style. Colour safe professional hair care treatment.