In a matter of seconds, in one spray, cover your visible and unsightly roots yourself, in the comfort of your own home — whether they're white, grey or your natural hair colour. Subtle, safe and easy to use — camouflage, hide, colour and get rid of your roots. Delay your next hair colouring by a week, or even several weeks. Bye Bye Racines can also be used to add a tie-dye effect to your hair.