Hi Karen & Megan !
I've used PetSilk and it was ok, not WOW, but ok. I've tried MinkSheen and although I like it better then PetSilk, I'm still not WOW'd by it. So I'm still looking too. The MinkSheen, you can get a trial sample from by going to their website and requesting it.
Touch of Mink Exclusive Skin Care Products
The best shampoo I've found for Boo is Johnson's Baby Shampoo. And although I don't like using human shampoo, he has sort of wiry hair and so far it works the best. But I'm still looking for a good dog shampoo that will work for all 3 of my crew.