I recently had a Balayage after using box dyes for years
. I have an area along my parting that always comes out grey which I have always touched up with box dye. The hairdresser has told me to stop doing it as it makes it hard to 'life' my hair colour. The trouble is the grey comes through after 2 weeks and I hate it! I can't afford to go to have my roots done every two weeks. I get scalp psoriasis and those root sprays always trigger it.
Does anyone know if there is a dye that is not as harsh as box dyes that I could buy just to touch up my roots myself? No bleach involved, just dark brown. Are there salon quality dyes that I could source?