Not sure, but I particularly like beautifully maintained long hair trashed with water then washed. I love long hair piled on top of the head exposing a women's back of her neck and then thoroughly washed with shampoo while the entire head and back of the exposed neck are scrubbed and massaged. I like scrubbing on the side of the head over and around the ears too while the long hair is moved from the top of the head over the side if the head and face. Then a thorough rinsing with the hair washed onto the face is great. And then finally comb conditioner from the back of the neck which combs the hair over the face.
I can never find these types of videos on the web even from Anya or Leona who specialize in long hair videos.