Typically, black hair needs to be bleached in order for dye to show up ... to get their insights and tips. From what you should ask your colorist for to the tip that'll save you a ton of time ...

One says, “So far, I am very impressed. I purchased the blue black. I have hair dye allergies so I was really apprehensive to try this, but I was pleasantly surprised. There is no odor at all so ...