Switching hair colours: what are the rules?
Hair colouration requires respecting some rules to avoid disasters and get a great end result.
When you want to change your hair colour, switching from one hair colour to another, you need to wait at least three weeks between each colouration. Once you have waited long enough, you can apply the new colour.
If you are in doubt or unsure, or just need confirmation of a colouring process, contact our Consumer Advice Centre to speak to one of our customer advisers, on our shared-toll number.
They will guide you through colouring procedures and answer any question you may have.
Using Garnier’s hair colouring product, with the help of the Consumer Advice Centre, will guarantee the best possible end result.