I'm thinking of trying the box to lighten my hair a bit more, but I'm not sure that's smart. I can't afford the salon at the moment -n- I want my hair lighter... I went to the salon -n- they bleached , browned, then oranged my hair, so a week later when I went to the springs I used sun-in to get it where it is... would using the box kill my hair? It's been 4-6 weeks since the salon.