Neutralizes metal buildup from water helps protect color leaves hair clean, soft and shiny metal particles from water, especially copper, can build up in the hair, dulling it and affecting the evenness of the colour result. With l'oréal professionnel paris série expert metal dx pre-shampoo pre-treatment , you get an effective pre-treatment that specifically helps remove metal build-up from the hair fibre. The advanced formula with glicoamine a small molecule that can penetrate the hair shaft works from the inside out to neutralise metal and provide a cleaner starting point before your shampoo and subsequent care. Advantages helps reduce the accumulation of metal particles e.G. Copper from water. Supports a more uniform and durable color result. Reduces the risk of brittleness and broken hair due to chemical and mechanical stress. Leaves hair more shiny, soft and easy to style. Suitable for all hair types especially colored, lightened or hair that is often exposed to hard water. How to use the product apply to dry hair section by section from roots to ends. Distribute evenly. Leave on for 3 5 minutes. Add a little water, massage into a light lather, and rinse thoroughly. Follow up with metal dx shampoo and your preferred aftercare e.G. Mask or conditioner for best results. Who is it for you who color, lighten or tone your hair and want a more reliable color result. You who live in areas with hard water and experience dullness, discoloration or a heavy feeling in your hair....