The Color Wow Dream Filter collects and lifts off minerals from your strands to unveil, and protect optimal colour. This breakthrough pre-shampoo spray filters out minerals typically found in city and well water that destroy the clarity, intensity and beauty of your hair colour. Discover Color Wow Dream Filter Pre-Shampoo Mineral Remover that works like a magnet in under 3 minutes to extract: - Colour-distorting elements found in tap and well water. - Metals that interfere with colour processing. - Minerals that leave a dulling film on hair and make your hair feel stiff, coarse and rough. Color Wow is a cruelty-free brand; they do not test any of their products on animals.