Home » Hairstyles & haircuts Highlighting on dark hair through a cap Adding highlights to your dark hair using a highlighting cap creates a natural look with dimension and depth. These images showcase the process and end result of highlighting through a cap for a beautiful, blended effect. Foil Foil hair colouring Foil hair colouring Foil hair colouring Foil hair colouring Foil hair colouring for dark hair short Foil hair colouring Foil hair colouring Foil hair colouring Foil hair colouring hair Bobbed hair balayage Foil balayage Foil balayage Darn hair balayage Bobbed hair balayage Bobbed hair balayage for long hair Browned roots balayage Melayage over the cap Hair colouring Hair colouring Foil colouring Foil colouring Foil colouring technique Oxycur colouring Oxycur colouring Foil colouring Melting hair with a comb Melting colouring tinting Melting on a cap