How many degrees should the hair fade when it is dyed dark gray?

Batik gray hair should fade to 9 degrees. If the basic skills are relatively shallow, it is best to dilute them with 0/00. The fading effect is relatively uniform. Use 0/00 twice, and then use a white wool meter to complete it. At the same time, bleaching powder should be faded three times and 9-degree milk should be used. The ratio of black wax to white wax after fading is 1: 10.