Ok, so i use to dye mine way too often, like every 3 weeks or so, but that was before i found a colour that i really liked. So about 6 months ago i finally settled on a colour i loved and now i seem to be colouring my hair around every 5, maybe 6 weeks. The root regrowth aren't too noticeable so i could probably go a bit longer between applications.
The colour i use is permanent, however, it does still seem to wash up a little, so thats why i feel the need to brighten it up when i do my roots. I apply the dye to my roots first, leave it on for 20 mins then run the remaining mixture through the lengths and leave that on for the further 10 minutes. I'm just wondering if colouring my hair every 6 weeks is too often with a permanent colour? I have searched and searched but there is nothing that comes anywhere near the shade in a semi-permanent colour. My hair isn't in the best of conditions, and its thinned a lot because of medication. It looks knackered if i don't style it - but i'm holding off on the straighteners and using my hair masks etc.