How long before colouring at home or in a salon should I use?

Use Precolour as the last shampoo prior to either your home or salon treatment, whether it is directly before, or even the day before, providing you do not condition or apply any styling product onto the hair following Precolour treatment. If you go to the trouble of clarifying hair and then proceed to apply conditioners and styling products, you have effectively undone the entire Precolour process and re-coated the hair. However, if you just clarify the hair with Precolour and leave it, the hair will be fine for colouring or chemical treatments, be it immediately or the next day.


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