Can You Dye Your Hair Blue Over Black?
It is possible to dye your hair blue over black hair, but the result may not be as vibrant as desired. To get the best result, it is recommended to lighten the black hair first before applying the blue hair dye. This can be done through bleaching or using a color remover product. It is also important to note that bleaching can damage the hair, so proper hair care and conditioning is necessary after the process.