L’Oréal Professionnel Hair Touch Up is a temporary root Touch Up spray to cover grey hair. Hair Touch Up is formulated with make-up pigments, it blends seamlessly with your hair to give a great coverage. You are able to wash it out in one shampoo and the fine nozzle is easy to apply. Hair Touch Up will be your new go-to when it comes to fighting the grey between appointments. - Instrumental test with Hair Touch Up before application vs after application vs after application and 1 shampoo with Pro Classic shampoo.