Protect coloured tresses with Colour WOW Dream Filter Treatment. This pre-shampoo spray defends vulnerable hair from environmental stressors and prevents coloured hair from fading. The innovative treatment is sprayed onto strands to actively filter out harmful minerals which can be found in city and well water as you wash your hair. Locks are shielded from toxins, ensuring that your hair colour remains vibrant and picture-perfect. Spray this treatment into your hair before shampooing to protect against traces of harmful copper, iron, magnesium, calcium, chlorine and other minerals found in tap water which can build up in your strands whilst washing. These minerals cause colour to fade over time and distort tone, leaving hair dull, brassy and greenish in colour. Dream Filter actively lifts these harmful minerals away from your strands and detoxifies from root to tip. Use this spray to ensure that hair does not become discoloured in-between salon visits. Suitable for all hair colours and types, this treatment deepens colour dimension, brightens highlights and makes a variety of shades appear fresher and more vivid.