LOreal DIACTIVATEUR Developer Diarichesse/Dialight 33.8oz (9 Vol 2.7%) This Developer and Oxidant cream activator specifically formulated to work with DIARICHESSE and DIALIGHT hair color. This is used with Majirel and Majirouge hair colors for getting much softer natural shades with less lift and more color deposit or when coloring to achieve darker colors. Creamy consistency delivers optimal Permanent and Demi-Permanent color performance from vibrant true colors to gray hair coverage.