1. Put on the gloves (E) which are attached to the instruction leaflet.
2. Pour the contents of the colouring bottle (A) into the colour developer bottle (B). You can also do this in a separate glass or plastic bowl (never metal), by adding the contents of both containers, developer and coloring.
3. When mixing in the developer bottle, screw the cap on and shake vigorously for 2 minutes until both ingredients are thoroughly mixed.
4. After this time, unscrew the top of the cap and immediately use the entire product. You should not, UNDER ANY CIRCUMSTANCES store the mixture or keep it in the fully closed bottle.