I've tried many shampoos and conditioners on Tatum. She has real soft straight hair that rarely mats. I don't even need to brush her hardly between baths. I finally started using the Nature's Specialties line (loved how she came back from the groomer one time and asked her what she used - this was years ago). We use the Plum Silky shampoo and the Re-moisturizer conditioner. Love it!! I order it on-line. Not sure if it's carried in stores.
Pet Shampoo for Dogs and Cats - Nature's Specialties