Kydra Le Salon Revelateur Cream Developer 9 vol. (2,7%) with organic Calendula oilThis Cream 9 Volumes (2. 7%) Activateur Oxidizing cream contains strand softening calendula oil, in addition, this oil improves the condition of the scalp, protecting it during the coloring procedure. In the case of primary dyeing (on natural hair), you need to mix the oxidant with Kydra Le Salon dye, and then apply the resulting mixture to your hair, additionally using a special Kydra Le Salon elixir (for 60 ml of dye, 10 ml of elixir), having