Blue: Pureology Colour Glaze is a high-gloss blue topcoat that neutralises brassy orange tones and restores softness and shine for up to 8 washes. A blue top coat formulated for dark blonde to dark brunette hair neutralises and tones out brassy orange hues, leaving you with silky, shiny strands in just 5 minutes. Immediate results that are long lasting. Purple: A high-gloss purple top coat that neutraliaes brassy yellow tones and restores softness and shine for up to 8 washes. Specially formulated for all colours of blonde, natural or lightened, this purple top coat neutralizes yellow hues and tones out unwanted brassiness. Get smooth, reflective strands with long-lasting results. Good for colour care. Neutralises. Smooths & adds shine. Vegan.