Hey, i used the smart colour hair lightener box stuff..
It worked quite gppd, for saying i have really dark hair i now use developer and bleach powder as its more even... and i used the pink dye and it came out really good though.
The smart colour stuff is good for using before putting a bright colour on, but wouldn't use it again for all over bleahing to blonde as my hair was always patchy and different shades.
i always use smart colour, the lightener one, they are amazing!
I've been using Smart Blonde Platinum Blonde for ages now! I found it works alot better then the XXL lightest blondes. They just turned my hair orange and this makes it a nice white blonde π and it's about Β£2.99 in Savers!