Products for oxidatively changing the color of keratinic fibers include at least two preparations (A) and (B), which are produced separately from one another. The first preparation (A) includes, in a cosmetic carrier, (A1) hydrogen peroxide and (A2) at least one chelating agent chosen from a group of specific chelating agents. The second preparation (B) includes, in a cosmetic carrier, (B1) at least one alkalizing agent. The preparation (A) is produced in a first container (container A). The first container includes at least two layers: an inner layer that includes a layer of a synthetic polymer (I) and an outer layer that includes a metal layer. Preparation (B) is produced in a second container (container B), which includes at least two layers: an inner layer that includes a layer of a synthetic polymer (I) and an outer layer that includes a metal layer.
