Hi, I'm stacking in from nails for a bit of advice, I hope someone's willing to help I usually use a mobile hairdresser who's great for cutting but not confident doing what I'm after so I'm going to find a salon but I want to make sure I ask the right questions first to avoid disaster! My hair colour is naturally medium auburn/brown but for years I've been using box colours either in mahogany or chestnut shades. Anyway I'd like now to take it back up maybe 2-3 shades more towards my natural colour, maybe a nice warm brown possibly with some highlights. I understand this will mean stripping the old colour out but I wanted to know what the safest/least damaging way is to do this, also because of all the red (natural & dye), I'm scared it'll go orange! I know it's probably difficult for anyone to say without seeing my hair but any advice would be appreciated! Thanks!