Balayage is a freehand technique best done in salon where the colour is applied by hand rather than using professional tools such as traditional foiling, meche or cap highlighting. It refers to the process of visually sweeping colour through the hair using a paddle or balayage board. Some techniques may isolate certain areas with foil where extra lightening is required. Generally, a balayage look will be deeper at the root and seamlessly melt into the lightest areas through the mid lengths and ends.