Colouring your hair with permanent or semi-perm colour will change the colour of your hair. You will need to decide when to use John Frieda® Colour Refreshing Gloss Black again to get the colour and shine effect you desire. You can use this black hair gloss anytime between colour applications. Make sure you have one hair washing after using this black gloss before you do permanent colour. The shine enhancers may interfere with your colour.