Max's (my Yorkiepoo) his hair is coarser and with quite a bit of wave in it, and also his skin drys up easier than my Yorkies. If I use a oatmeal based shampoo, and a silk protein conditioner I can get his skin cleared up, and a little silkier quality to his hair. Honestly though it's very difficult to brush since it is so coarse, and
so I have him shaved every 4 months.
Now his personality is all Yorkie!!!
Jess