Colour B4 Review

Colour B4 shrinks the hair colour molecules that are in your hair so that they can be washed out during the rinsing and buffering stage.
The main thing you will hear people say about Colour B4 is the problem with the smell, but the hair product dosen't work as well if the room is cold. So no matter how bad the smell is i wouldn't open the window.
The main thing you will hear people say about Colour B4 is the problem with the smell, but the hair product dosen't work as well if the room is cold. So no matter how bad the smell is i wouldn't open the window.
Although it is recommended to leave it at least a week before applying a
permanent dye, (make sure you chose a shade or two lighter than the
desired colour) as the hair will be porous for a while from the Colour
B4 treatment meaning that it will grab the colour and appear darker.
Thanks for reading, Laura x
Hi! After that you used the B4, what else did you do? Did you use an other blonde permanent hair color? Or this after pic is your final result after B4? Thanks your answer!
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