After some advice please. In my late 30s and until last year only ever had a couple of greys in my dark brown hair, but in the last year they've multiplied like rabbits, probably due to stress and illness. I dyed the greyest bits of my hair using box dye from Boots but it seems quite frazzled now. For more experienced brown/dark haired coverers of grey - what in your experience is the LEAST damaging over-the-counter way to dye hair dark? Permanent OTC dye, temporary OTC dye, or henna?
Having lost my job due to the illness I can't really afford to get it dyed at the hairdresser right now - but do people find this to be less damaging to their hair than OTC dye, or is there little difference?
I know this sounds a bit crazy but I previously tried to avoid dying my hair - ill health has done an absolute number on my looks and the only thing about my appearance I still really liked was my hair which seemed to be very shiny/soft/in good condition and never really needed straightening or styling to look good. Now it's dyed it needs blow dried/straightened etc not to look a mess. I always found dying it wrecked the condition of it when i tried in a few times in my 20s. Course the other option is just to leave the greys but they show up so strongly in dark hair!