CommentReplyReportThis answer closely relates to:Re using half of hair dye unmixedCan i use color charm developer with ion hair color?What color and developer should i use if i want lite hair color?Hair color reuseWill it ruin my hair if i use too much peroxide developer mixed in to my colour?If im dying my hair and my roots are very light and the rest of my hair is dark do i leave the color on th