Rich in keratin amino acids, hydrolyzed keratin protein, hydrolyzed soy protein, sunflower seed extract, camellia leaf extract and the vitamin packed Argan oil grown in Morocco, our KERARGANIC POST TREATMENT MASK ( STEP 3) has been especially formulated to penetrate the depths of the hair shaft to nurture the hair and prolong the keratin treatment. In addition to strengthening the hair and giving it manageability, it promotes an enviable silky and shiny look. It can be applied as a reinforcement for a keratin treatment after the first wash, or as a deep conditioning treatment even if a keratin treatment hasn't been done. It can also be effective for color locking after hair coloring.