Joey's breeders recommend Biogroom and I really love it. I've tried different products, because I'm kind of an addict, but I always like the Biogroom the best. It's really concentrated, be sure and mix it 1 to 4 parts water. I then mix this with even more water when I'm actually using it. Here's a link to the Biogroom company, just go to "contact us" and ask for some samples. They sent me medicated oatmeal shampoo, puppy shampoo, regular shampoo, and cream rinse. Don't forget these small bottles are concentrated too.
Bio-Groom - Exceptional Pet Care Products for Over 30 Years