An aerosolized semi-permanent hair dye is provided for, which is non-toxic to humans and shelf stable, utilizing coal tar dyes, solvents, propellants, neutralizers, colorant treatments and humectants. The invention has the benefit of being easily applied to hair or other keratinous substances and dyes hair for a period longer than currently available spray-in temporary colorants, but shorter than oxidized or otherwise developed permanent hair dyes.
