TRIJUVEN© Step 1 is an essence used in salons for chemical treatments such as bleaching or colouring. It is mixed with other products to obtain the best results. When not used for a chemical treatment, it is diluted with water before being applied to the hair. Its main purpose is to help colour last longer and give hair a smooth, shiny finish. It also contains nourishing ingredients to moisturise the scalp and leave hair looking shiny and healthy. Used correctly, TRIJUVEN© Step 1 can enhance colour intensity to create a vibrant, even tone that won't fade.