Need some advice on Colour B4, my hair is returning back to it's original colour after a few days.
Really like my brown hair but fed up with grey roots, they are just too obvious now so thought I'd try to go lighter so they didn't show up as much.
Tried Colour B4 last year, freaked out at the colour and promptly dyed it back again.
Did it again last Thurs liked the colour, but didn't rinse it for long enough. Result is that it returned to brown over the next 3 days, so I did it again on Sunday. Followed the instructions really carefully, covered it in cling film (much to ds amusement) and used a timer for rinsing. It came out really light, but it's going dark again.
Any ideas?