Best blonde hair dye?

-I have dyed medium brown hair (not recent, dyed about 4 months ago) with a few blonde highlights underneath.

I'm going to wash ALL of my brown dye out (as it was demi-permanent) so I get my natural dark ash blonde hair back.



Once I've washed it all out I'm going to dye my hair a light blonde.

I only have ONE chance for this, not dyeing it 6 times in one day.

I can't let it go orange or ginger, or strawberry blonde. I can dye it twice maximum, I can't be dyeing it different days.



Thanks!



BQ: Tips for making the dye in my hair wash out faster?Try swartzcopf live die, the blonde is really good and quite strong so you will need a good condtioner afterwards!Try colour b4, it takes u back to your natural colour