| 摘要 |
<p>The object of the present application is a method for filling hair color changing products into packaging, wherein, in a first step, the hair color changing preparation is filled into the packaging; in a second step, a preparation is applied to the surface of the hair color changing preparation, the preparation containing at least one reducing agent; and in a third step, the packaging is closed. Using this method, it is now possible to reduce or completely avoid discoloration of the hair color changing agents during storage, which often leads to product complaints.</p> |
