Meant to ask on here before but now I have forgotten what the bloody thing is called Revital or something>? Anyway, hair dresser coloured it and gave me two tubes to use at home - one is conditioner (numbered 3) and number 4 is a tube of colour renewal. I am not sure if I use the conditioner and then the colour renewal. Do I need to use it every time I wash my hair? (I know to use the conditioner)