Oh my goodness.. how different it is, and frankly, quite silly in the face of what you are facing there in terms of anti-pedigree dog opposition and health issues...... many other countries allow various preparations to be used and generally ban alteration of colour or chemical straightening of coats.
There are some fabulous dog show preparation shampos and conditioners around, with big sales in the UK so there must be a lot of humans using the products on their own hair !
Down-under for show preparation I like to use Sard Wonder soap if the girls pants are a bit yellow from squatting, then a coat brightening shampoo and then a wonderful silky conditioner for finish and shine.
I am not changing what is under the coat, I am not changing the colour of the natural coat and judges running their hands over the dogs body/ coat will feel a nice clean coat... that then drapes back after examination or moving the dog.