First, I am almost completely done with my first 48 hour allergy test and I cannot believe that I am seeing and feeling absolutely nothing.... I am so thrilled I could cry. Second, if all goes well the next test around, I would like to try and lighten the medium ash brown I got slightly, maybe by a half shade or whole shade. Can someone tell me what to mix with the medium ash brown to lighten it a little??? Continuing to keep fingers crossed!!!!!