L’Oréal Professionnel Serie Expert Metal Detox, 500 ml, Hair Sprays for Women, Protect Your Hair From the Negative Effects of Metals Before Dyeing It The water we wash our hair with every day contains metal particles – mainly copper – which gradually settle inside hair fibres. These invisible particles can cause breakage, hair dullness, and unwanted colour changes after dyeing. L’Oréal Professionnel Serie Expert Metal Detox preparatory spray provides the solution: its formula with patented technology neutralizes metal particles and protects hair even before dyeing, highlighting or lightening. The result is stronger, healthier hair with less risk of damage and 100% authentic, radiant colour that lasts longer. Characteristics: professional treatment before dyeing, highlighting or lightening neutralises metals (e.g. copper) inside hair fibres protects hair from damage and changes in colour the resulting shade is even and lasts longer leaves hair stronger and more resilient reduces hair breakage by up to 87% Ingredients: glicoamine (10 %) + Ionène – patented technology with concentrated glicoamine molecules which neutralise metals inside hair How to use: Apply L’Oréal Professionnel Serie Expert Metal Detox spray to your dry hair before dyeing it. Spray 8–10 times on short hair or 15–20 times on medium or long hair. Allow to act for 3–5 minutes. Then you can start dyeing your hair.