Matrix Socolor 4RV+ medium brown red violet plus 90ml Matrix Socolor has been reworked, improved and given a new packaging. The shades now contain a Pre-Bonded Concentrate, which protects the hair structure from damage. The Pre-Bonded Concentrate consists of taurine and cationic polymers. Together, they act as a protective shield. All shades consist of a base shade and a reflective shade. The combination ensures colour-faithful final results at every pitch. Tip: The old Matrix Color Sync can be mixed with the new shade. The formulations have been adapted so that the colour results are exactly the same as before. In addition, Matrix Socolor contains a Cera-Oil care complex for even results, balanced colour and a beautiful shine. Properties hair colour in gel consistency Permanent hair colour Optimal grey coverage Protects the structure of the hair The Cera Oil care complex nourishes the hair and makes the surface shine Application See instruction leaflet.