Thanks to the new molecular technology CPL MASH UP COMPLEX you will be able to carry out any technical service without fear of damaging your clients' hair N°55 Protective Serum preserves the hair structure, considerably reducing the damage caused through chemical treatments such as bleaching, coloring, perming and straightening, keeping the hair healthy, shiny and strong How to use Mix 1 to 4g of N°55 for each 10g of technical product used, depending on the thickness and health of the hair, and proceed with the application.