Kérastase Masque Apres Soleil is an after-sun treatment created to repair coloured hair exposed to the sun. Your hair will be left soft and shiny with long lasting colour radiance. Masque Apres Soleil is formulated with Kérastase’s Photo-Défense Filter which provides active protection against both UVA and UVB rays; cationic silicone which creates a hydrophobic barrier; ceramide to strengthen and reinforce the hair; and cationic derivatives to improve the surface of the hair. Directions of use: Apply to towel-dried hair after using Bain Après-Soleil. Massage in gently and rinse thoroughly.