Black hair colouring, a type of hair dyeing, involves applying dye to one's hair to achieve a black hue. For example, celebrities like Beyonc and Naomi Campbell have sported striking black hair.
Black hair colouring holds cultural significance and offers practical benefits. It can enhance one's appearance, boost hair health, and cover grey hair. Historically, black hair dyes have evolved from henna and plant extracts to modern chemical formulations.