1 Preparation of coloring emulsion. Press the content of the tube into a non-metallic dish (plastic, glass or porcelain), then add the developer fluid and mix the two ingredients with a coloring brush until a homogeneous coloring emulsion is produced. Please apply the emulsion to your hair as soon as you have finished mixing it to achieve an optimum coloring result. 2 Application of coloring emulsion. For first coloring, the coloring emulsion is applied to unwashed hair strand by strand, using the coloring brush. Please make sure that you do not miss any strands. Then comb your hair thorough with a wide-toothed comb to achieve even distribution of the coloring emulsion in your hair. For root coloring, make partings in your hair and apply the coloring emulsion to the roots. After allowing soaking time of 20 minutes, comb the coloring emulsion evenly right down to the ends of your hair. 3 Soaking time. The soaking time is 30 minutes