You can buy this here Like I've said a few times, getting blonde hair means more brittle, weak locks.
That means you need to be extra careful with your hair, especially when it's wet. Use a leave-in conditioner of your choice (I like this one) when it's wet, and then brush through your hair gently...
Styling with heat is bad for any kind of hair, especially bleached hair.
Try to avoid using your blow dryer, flat iron or curling iron as much as possible.
For another thing, bleaching your locks is SO bad for your hair. I absolutely love my hair color right now, but I hate how bleach makes my hair feel.