I died my hair today a natural brown but it went patchy so I felt I had no option but to re-do it a couple of hours later. Not ideal but there was a really obvious streak in it. It’s now an even colour but is much too dark. I’ve read about using head and shoulders to lighten it up a bit and wondered if anyone had done it before and whether there is a particular technique I should use or whether I just repeatedly wash it? This will be the last time I attempt a home dye!