Colour B4 hair colour remover is the safest and most effective way to reverse an undesirable hair colour application. Colour B4 shrinks the artificial dye molecules in the hair, enabling you to simply wash them away. What's more Colour B4 does not touch your natural hair pigment so you are left with the colour which lay beneath your artificial shade. Colour B4 takes you back to your lightest shade. It will return your hair to its natural colour if the artificial hair colour applied is darker than your natural level. If the artificial hair colour applied is lighter than your natural colour, the natural pigment within your hair has been chemically lightened Although Colour B4 will remove the artificial dye, you will still notice your natural hair colour has lightened. In this situation (and to re-create your natural shade) simply select a hair colorant close to your own natural depth and tone. However, always select by one shade lighter than your (natural) depth to ensure a realistic result. Colour B4 was formulated to work successfully removing permanent colour in 20 minutes. Therefore this was originally the stated recommended processing time. However, following 12 months consumer feedback, it has been shown that for stubborn colour build up, a longer processing time may be required. They have therefore updated its user instructions to recommend up to 30 minutes for Regular. The original 20 minute recommendation is still valid and in the vast majority of cases this processing time will be sufficient. The updated instructions simply reflect consumer feedback by confirming that longer processing times can safely be used where appropriate.
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