Brazilian keratin masque by salon advantage is an intense treatment formulated to deeply repair and hydrate damaged hair. With frequent use, hair will recover shine and manageability. Directions: after shampooing with advantage argan oil hydrating shampoo, towel dry hair then apply a liberal amount thoroughly from roots to ends. Leave in 5 to 10 minutes. Rinse off and style as usual using the advantage argan oil styling or curl cream. For best results cover hair with a plastic cap and process under blow dryer. Use once or twice a week.