I've been using semi-permanent colour (L'Oreal Casting) on my hair for the last few years, always in the red spectrum.
I've now got a lot of product build-up / banding from multiple applications. On top of which, I'm job hunting, so want to take my hair back to a more demure colour for a while.
I've seen products in Superdrug etc., that promise to take your hair back to its natural colour, if you haven't bleached your hair. I suspect that these products won't remove all my colour successfully, but I'm hoping that they will at least reduce the amount of red so I have a more neutral base to colour.
Has anyone used these products with any degree of success? Colour B4 is the sort of product I'm considering.