Before you dye your black hair, you have to know some things about it. First the crucial element of dyeing the black hair is the condition of your hair. It needs to be naturally strong because the healthy hair can be dyed without worrying about many problems.
Second, if your hair has been dyed before and the natural color hair hasn’t grown yet, you need to take the color removal before you begin dyeing your black hair. This is important because the natural hair color is more responsive to the dyeing process.
Most of the time, you will need to bleach your black hair at least twice, and it is better to apply the second bleach process a week after the first one. Never bleach your hair twice in a short period of time because it will increase damage and harm your hair.