help horizontal stripey hair

[fungo]

Last year I stopped dyeing my hair with permanent dye and starting using colour deposit rinses. I had been using a dark blonde and wanted something a bit warmer so I used a Hazelnut colour. The problem is it didn't take on my previously rinsed hair and only took on the 2 inches of virgin hair I had. I tried putting a light brown over it to tone it down but it's gone a horrible orange/pink colour. Now my natural ashy brown roots are showing and I have a stripe of orange/pink and dark blonde. The Hazelnut dye has been washed more than 10 times but it just won't shift. Does anyone know what will fade colour deposit colour, I know it has clear Henna in it, could that be making it colour fast?

[Firefox7275]

There is no such thing as clear henna, what did you actually use was it cassia? What do you mean by colour deposit rinse, a peroxide-free semi permanent or something else? Have you considered running strand tests with shed plughole hair instead of experimenting on your head?