Matrix Socolor Beauty is a European manufactured line of Matrix Socolor where shade number matches US shade number and produces the same results. The color description stated on the box is one shade lighter, but still produces the same results. So please use the number of colors for selecting the correct shade. Socolor is a permanent hair dye that is simple to use, giving you the results you want. Premixed bases and self-regulating shades make your job easier. Socolor beauty hair dyes give your hair long-lasting effects and are also suitable for covering grey hair. The protective ingredients also give your hair a rich shine. *This is a professional product and should be used only by a trained individual. The seller is not liable for any adverse outcome resulting from the use of this product.