Colortone professional Formulated for resistant hair colors, fade resistant tint To ensure correct color result, only tint on level 8-10 natural hair, or pre bleach any darker hair. Any intense orange yellow toned light brown will need either further lightening v or additional violet or blue toner added ( to go darker) test strand is a must when doing color corrections deposit, tone or lift with the full range Formulated in Italy *** Hair dye cannot remove other hair dye colors, it will not lighten darker dyed sections***