Wow, cant believe its been almost 4months since colouring my hair with Garnier Iced Coffee. I know many wont believe this and be somewhat sceptical but I havent coloured my hair since or done any touch-ups yet my hair is only now starting to grow out from this multi-dimensional brown. My roots are much darker and so I now have a subtle Ombre hair vibe. I'm actually very shocked that the colour has lasted this long.