u/GlitterFish-1976

I have naturally blonde hair and I get a few face highlights per year. Yesterday I went in and it has been looking a bit brassy so I asked for toner to tone it down. To me it now looks brown but people say it’s not as bad as it seems to me. I think maybe the toner was on a bit too long. Is there anything I can do to bring my highlights back out? I thought about putting baking soda in my shampoo or using a hair mask. Advice?