We have many terrier breeders using this product. They have indicated that the coat is very healthy, but it has not reduced the harsher texture. What they have also said is that the product gets the coat in really nicely, but if you keep them on the product you will need to strip more frequently. Many are using the product to get their dogs coats in, get them stripped and shaped to the desired look, and take the dog off the product, until they need more coat again.