Extract hair of impurities to achieve a brighter, luminous colour with the Colour WOW Dream Filter Treatment. This unique and innovative pre-shampoo treatment works to eliminate the metals and minerals that dull, distort and darken the appearance of hair colours. When we wash our hair, metals and minerals found in pipes, taps and wells can stay in the hair and leave it feeling coarse, rough and stiff, and colour is dulled. The Dream Filter uses breakthrough technology, combining molecular filters and polymeric filters to gently cleanse hair of minerals and metals in under three minutes. This product is ideal for those who colour and highlight their hair to keep it looking fresh and vibrant. The formula has been expertly balanced to suit all hair types and colours, containing no harsh ingredients that strip or damage the hair. It is recommended that you use Dream Filter every 3-4 shampoos, or more often if you are frequently exposed to chlorine. To use this product, spray onto dry hair before shampooing. Spray evenly, section by section to saturate hair thoroughly. Leave in for 1-3 minutes before rinsing out and going ahead with your usual shampoo.