So over Christmas I did this to my hair:

I took some Bleach London semi-permanent hair colours, in Blullini and Rose:

I splortched the blullini on one of the front strands of my hair and wrapped it in some tissue and put a clip over the tissue to keep it in place, so I didn’t get blue dye all over me.  Then I separated another strand for the other side:

Next I poured out some pink:

I put it on my hair:

And I rubbed it in:

I wrapped that side in tissue and clipped it down as well.  Then I waited about 10-15 minutes.

When I washed it out, it looked like this:

After a couple of weeks of trying to wash it out, the pink had totally vanished, without even a reddish tinge or anything, but the blue still looked like this:

Annoyingly, the blue remained for another seven weeks!  It’s a shame because it was a beautiful electric blue colour.  I was very pleased with the pink result, it was a delightful shade of pastel pink and was really pleasing to see in the mirror, and I used it again before half term to colour the entire bottom half of my hair, tutorial was done on Youtube and can be found here:
https://www.youtube.com/watch?v=bAfS6MVLVpw

Have you used any semi permanent Bleach London colours?  Let me know in the comments.