Toni & Guy Purple Toning Mask is a blonde's best friend! This mask, with purple dye, will intensely nourish hair for smoother, shinier hair. Enriched with Pearl Extract, this mask will boost shine in your blonde hair. Toni & Guy Purple range neutralise yellow & brassy tones in bleached blonde, grey and silver hair. In the colour wheel purple sits opposite to yellow, and blue opposite red. This is why the purple pigments will neutralise yellow and brassy tones in blonde bleached hair.