Use 2 3 times a week to highlight cool blonde tones neutralise brassiness prevents blonde gray hair from yellowing with its violet dye load follow up with the colour endure conditioner and leave in protectant benefits tones blonde prevents yellowing and warmth maintains tonal integrity for brighter beautiful blonde gray hair toning blond after any highlighting or blonding service brightening highlightedhigh lift blond or gray hair that faded or yellowed due to oxidat