Dry shampoo is genius – pure and simple. It can give you clean-looking hair in 30 seconds and also, provides volume – a total bonus for those with thin hair. This one is one of our all-time favourites. Why? Firstly, because it works fast – penetrating hair shafts and quickly absorbing dirt, grease and product build-up leaving hair fresh and full of bounce, plus, it’s sweetly-scented.