Reveal the radiance and shine of your hair with the kerastase cristalliste masque the luminous perfecting masque is kerastases first primer masque enriched with a polymer derived from glucose nourishing dry oil and ceramides reinforce your hair against mechanical aggressions and maintain the look and feel of your blow dry for longer the secret to maintaining that just blow dried feeling the luminous perfecting masque will leave hair looking velvety smooth and beautifully radiant apply