Good Dye Young Semi-Permanent Hair Colour Toxicity combines salon-grade pigments with a nontoxic formula that deposits ultra vibrant colour, without damaging your hair. You could own some hardcore hairstyles with this kick ass copper hair colour. Lasting for 16-24 washes, this semi-permanent rich, brown based orange copper hair dye deeply conditions with a high-quality cream base that acts like a hydrating hair mask with essential hair oil benefits. This rich, brown-based orange hair dye is most vivid on level 8 hair.