Is Brilliant Brunette® Visibly Brighter® In-Shower Lightening Treatment safe to use on color-treated or highlighted hair?

The Brilliant Brunette Visibly Brighter In-Shower Lightening Treatment is safe to use on colour-treated and highlighted hair. However, if your hair is intensively bleached or damaged, this hair-lightening product should not be used on your hair. This product works by reacting with and removing melanin from natural hair. If your colour-treated hair is too dark, you may not notice an effect from Brilliant Brunette Visibly Brighter In-Shower Lightening Treatment.

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