TONI&GUY Blue is the innovative solution for naturally brown hair and brunette hair with bleach and salon highlights. In the colour wheel purple sits opposite to yellow, and blue opposite red. This is why the blue pigments will neutralise red and orange tones in brunette hair. This product is perfect for coloured hair! Start with TONI&GUY Blue Shampoo and follow with this TONI&GUY Blue Conditioner to neutralise red & orange tones in brunette hair.