Hill's Dog Treats Hypoallergenic 220 gr are delicious, crunchy treats formulated for dogs with food intolerances and to support skin function. With a great taste that your dog will love! Hill's Hypoallergenic Dog Biscuits are an excellent complement to dogs fed Prescription Diet d/d, z/d, i/d, i/d Sensitive and Derm Defense dog food or Science Plan Sensitive Stomach&Skin.