Can anyone recommend a good quality shampoo for a ten year old girl? My DD has longish blonde hair, quite thick but with fine strands. She's been using Head & Shoulders 2 in 1 shampoo and conditioner combined for the past few years, but her hair is starting to look a bit dull & I think I need to try a better brand. I'm a bit stuck as I use Aveda shampoo so can't really afford for her to also use it (it's £20'a bottle but I am in my late forties & need the help!).