The product works for all breeds, including non-shedding breeds. What our customers with these breeds tell us is, that it works very well to get the coat to grow out so that it can be trimmed and shaped as desired. They also indicate that they were surprised how quickly the coat came in and found that was necessary to groom a little more often to avoid matting, but they were happy to do so, because they were getting show length coat much swifter. Once the coat has reached the desired length, many have taken the dog off the product to avoid the quick hair growth, but put them back on if they need another boost.