What do I have to consider when changing chemically coloured hair?Updated 4 months ago
To ensure chemically treated hair—such as bleached, colored, or permed hair—achieves the desired shade, we recommend pre-treating with Senna/Cassia.
If you’re going from chemically lightened hair to a much darker shade, pre-pigmentation with our ColorPrep may be helpful.
Whether your hair is chemically treated or not, we strongly suggest using DeepCleanse Shampoo before every coloring session.
Please note that with chemically darkened hair, sometimes only the roots need recoloring if the lengths are still dark enough. If you’re unsure whether you need a full color change or just a root touch-up, don’t hesitate to contact us at
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