Hard water detox removes colour-distorting minerals in 3 minutes for brighter, shinier, silkier hair. This pre-shampoo treatment collects and lifts off minerals from your strands to unveil, and protect optimal colour. It filters out minerals typically found in city and well water that destroy the clarity, intensity and beauty of your hair colour, leaving hair softer, silkier and brighter. It is a gentle treatment that works in under 3 minutes and is suitable for all hair types, especially colour-treated and fair shades. Do not use immediately after colouring your hair; wait at least 5-7 shampoos.