Highlighted brunette, blonde, and grey hair can become yellow and brassy over time. This unique leave-in hair oil treatment transforms dry, brassy hair! Our ultra caring Purple Reviving Oil helps neutralise yellow and orange tones while nourishing the hair, leaving it feeling soft, and revitalized. How does it work? Purple colour is the opposite to yellow on the colour wheel, the purple within the Purple Reviving Oil formula helps neutralise yellow tones. The perfect finishing touch to complete your anti-brassiness routine for an even brighter blonde. For best results, use after the Color Radiance Purple Shampoo and Conditioner or Deep Purple Mask.