I bought Bio-Groom Waterless Bath Shampoo for my cat to use as a spot cleaner. It did a great job cleaning dirt off of her fur. The product is not unscented, it didn't seem to bother my cat and it smells pretty good. It did stain the towel I used to dry her with, so don't use your nice ones with it. After the Bio-Groom dried her fur was a little clumpy, but I really good brushing helped. So far no negative reaction on her skin or fur. Easy to use, and it works.