Specifically designed for use with XP200 Permanent hair colour to ensure optimal results, easier application and exceptional shine.The XP200 Developers are a high performance Developers for hair colouring and bleaching. The creamy consistency makes colouring preparation and application easier, whilst its antistatic properties ensure the hair is left soft and shiny. Choose from 4 different strengths; 3%, 10 vol for creating pastel shades and for sensitive hair structures 6%, 20 vol for most colouring techniques, up to 2 levels of lift 9%, 30 vol for 3 levels lighter than the natural level 12%, 40 vol for 4-5 levels lighter than natural and for use with the super lightener series