Your advice on treating highlighted hair with a 'patina' treatment on top, (whatever that is) please. My hair is quite dry, but I rarely blow dry it and never use styling tongs or anything like that. I use a gentle shampoo and conditioner, and sometimes a protein treatment, plus sometimes an oil thing you apply to damp hair and leave in. But these never seem to make my hair look really well conditioned and shiny. Any tips please?