How often you should be colouring your roots depends on your hair colour/style – for example, whether it’s semi-permanent or permanent, and, of course, the level of regrowth you’re comfortable with seeing. With this said, our stylists highly recommend booking in for a touch-up every 6-8 weeks, or within up to an inch of regrowth.
The reasoning behind this lies in hair growth science. Because your roots sit closer to the heat of your scalp, they typically develop faster than the rest of the hair when bleached or dyed. In letting your hair grow out beyond the one-inch mark, you’ll likely be risking inconsistencies in your touch-up colour.