Hi guys I’ve been out of the salon for years,had my hair hilighted and then back to my natural colour shade 5-6 which was came out really red, I put on a box colour 5.11 which went really dark more of a level 3 so I’ve let that fade and applied a box couloir 6.11 which is now right level colour but really red/orange I’ve always used L’Oréal when I was in salon but things have really changed so do I need to put on 6.71 or remove the undercoat first or any other suggestions thanks x