I have very thick coarse wire like hair which has been recently tamed by a keratin treatment. I’m thinking I’d like to go lighter at the ends but should I do this before or after my next keratin treatment? Would the bleaching ruin the affect of the keratin? At the same time would the keratin make the colour change/go too brassy?
I’m a natural dark red/auburn and the keratin made my colour more copper this time (in a good way I hope) but worried it might mess it up?