Enjoy the ultimate hair refresh with Color Wow's Dream Filter Pre-Shampoo Mineral Remover. The pre-shampoo treatment rinses away impurities that can be found in hard water, such as copper, iron, magnesium, and calcium. Hard water minerals can attach to strands when washing, resulting in brassy tones or dulling colour. Ideal for lightened, bleached and blonde hair types, the gentle formula visibly detoxes and exfoliates strands to slough away potentially damaging minerals. The hair is left looking revitalised and balanced with optimised vibrancy. Use Dream Filter between salon trips to maintain the vitality of colour.