Tinsel adds temporary streaks of sparkle and shine to your hair Yes, you can wash your hair Yes, you can get a hair cut Yes, you can blow dry your hair Yes, you can flat iron your hair Yes, you can dye your hair Yes, you can brush your hair Yes, you can take a shower and wash your hair Yes, you can choose what color you want to put in your hair Yes, you can put tinsel in long or short hair Yes, tinsel can stay in your hair days to several months.