Adds powerful blue-violet tones with a slight hint of red to medium-dark brown hair. Tones with Novacolor Violet Series. Not recommended for use on blonde hair.The Perfect solution for colours that fade quicker, the intense range is Sulfate and Paraben free and formulated with increased dye intensity to keep colour bold and vibrant. Contains UV inhibitors and colour enhancing extracts of Kakadu Plum, Roobios and Birch.