I've tried a bunch of dog shampoos over the years... for our (very fluffy) American Eskimo we finally narrowed it down to Paul Mitchell's John Paul "Super Bright" Shampoo and the John Paul spray version of the Oatmeal Conditioner...BUT...an Eskie needs to be bathed only every few MONTHS... very different from a Yorkie, who needs more frequent washes.
When Logan the Yorkie came along a few months ago, I did my research (here) and ordered a few different products to try.
About a month ago... I had Logan in the tub and then realized at the LAST minute that I didn't have any of his shampoos handy! But his big brother's "Super Bright" was right there... and I thought... hmmm...does a Yorkie need to be whitened?
I know "whitening" shampoos don't really bleach the fur- they just have a blueing agent that makes their fur "look" brighter. So... I figured... what the heck? I'll try it.
HE GLOWS!!!!!!!! I swear, his fur is so gleaming and shiny, you can see him in the DARK!
I always condition him with Frederic Fekkai Shea Butter Conditioning Masque (another experiment gone VERY right!) so that makes him SUPER easy to brush (and he smells delicious!) and even though it's not a "dog" product, I've told every dog person that I know how amazing it is.
At the end of the day, though... every furbaby is SO different, and their grooming needs will change (with the seasons, changes in activity level, changes in diet, changes in attitude, etc.) so you have to find the best fit for YOU and your baby.
I actually have a friend who has a pitbull that she bathes with Chanel No. 5 shower gel... makes me itch just thinking about it, but the dog looks (and smells) like a diva!