I have been coloring my hair blonde with L'oreal Les Blondissimes LB01 for years always with great results. However, recently my rooots have been turning horribly brassy. I have not changed my haircare routine at all however I do have some grey roots so I am wondering whether that could be the problem. I used a toner once and it turned my hair an ugly dirty grey. I simply cannot afford to go to a salon every 3 weeks or so to have this done professionally. Any helpful advice will be so much appreciated.
Thanks:(