When Colouring your Hair from Light to Dark, your pre Lightened Hair Colour will absorb Colour differently compared to your Regrowth or Natural Hair Colour, surprising you with a khaki Green Brunette.
For example: If you're Colouring a Lightened Blonde to a Brunette you may be surprised with a Khaki Green, Brown Colour. This happens when you're Colouring your Hair too many shades from Light to Dark and need a Colour filler.
What is a Hair Colour filler?
A Colour Filler is the Hair Colour used in between your Light Colour and the Dark Colour you want to be, to build the pigment back into your Hair so the two Colours can connect and transform into one, smooth Hair Colour.
How do I know if I need a Hair Colour filler?
When you are Colouring more than 3 shades Darker than your Lightened Hair.
For Example: Your pre Lightened Colour is 9 Very Light Blonde (minus) Your goal Colour 5 Light Brown = You need to Darken your Hair 4 Shades.
How do you choose a Hair Colour filler?
Warm or Golden Hair Colours are the ideal pigments to add Warmth back into your Hair and build your Brunette off.