My 2 year old dd has really frizzy wispy hair, it's quite long but looks very thin and straggly, like mine.
I was doing my hair a few weeks ago and she was watching so I did her hair with the GHD's as well. 
I put the heat spray on first, but is it really bad??
I have to admit it looked so much better, i usually have to put it in a pony tail as she never looks tidy.
I did it again today for the second time, once every few weeks is ok though, isn't it?
Awaits flaming.