1.wash hair out and dry (do not use 2 in 1 shampoo). 2.according to different requirements ,mixepual amount of color cream and maintainer ,extrude them evenly onto the hair for dyeing. 3.wait for 20-30 minutes(better using heating or steaming hair treatment machine).if the temperature is below 20,please prolong it for 10-20 minutes. 4.use small amount of water to wet the hair thoroughly ,and massage it for a while ,use our color-locking protective shampoo and wash out