Uyghur women like their Nu Skin
In the 2012 investor day Nu Skin published a map of their Chinese sales by region.
(Source - slide 81.)
Here is a map from Britannica of the population density of China.
On these numbers the women (and maybe men) of Western China are giant consumers of the product relative to population - indeed probably relative to anywhere in the world.
Nu Skin it seems has a knack of selling to Uyghur women.
Perhaps they could explain it one day.
John