I would really recommend going to see a professional stylist who specializes in color. However, if you want to do this yourself you will need to purchase a lift for your natural hair color. The timing will be very important. Know that your black hair will lift from black to brown to red to orange to blond and you'll need to determine how light you'd like to go. Be sure to follow the product directions exactly in order to avoid over processing and/or damaging your hair.