I bought this Coloration necessity because the one I (Schwarzkopf Diadem Mittelblond), was no longer available actually use. In the package you will find a relatively large container in which everything is mixed and the mixture is then screwed the cap on it. This container should not shake, but only once turning upside down and back again. That struck me as funny, but as has been repeatedly pointed out that one but not to shake it, I've not even made. So old t-shirt on, gloves and going about it. I find the procedure quite impractical. Is sprayed to the foam in the hand and then transfers it to the hair. But came out foam and a darker liquid, so probably the color. If the container is shaken prefer, but as I said not to you that, then got held at head twice more to the liquids to mix him better. Unfortunately did not help, there were still foam and the liquid out. In addition, can not control where the foam sprayed because it comes time rausgeschossen, sometimes hangs on one Applicator. Over time, it is also difficult to figure out because it still probably make air holes in the bottle. In addition, troublesome bubbles with out which then fly through the air each time come. And one can not estimate well when the bottle is empty, because the foam is quite light. Reaction time is 30 minutes. Unfortunately, I've noticed after application, I forgot one point. And usually you can take color from the other strands and they even distribute. That's here but not because the foam fixes itself to the hair and the hair can become a sticky mass. Very annoying. And I was very shocked when I after a few minutes it once looked. The saw namely very brownish. But here I have to say, a beautiful color came out. All in all, the color is very beautiful, but the way how to apply the foam and how it feels on the head, is far from good.