Hill's Pet Nurtition Inc. Prescription Diet Hypoallergenic Treats are designed for pets with allergies and sensitive skin. According to the company, the treats, available in canine and feline formulas, help eliminate the potential for adverse reactions to foods, as they contain hydrolyzed proteins. Additionally, the canine treats support skin barrier function and nourish the skin and coat with antioxidants and omega fatty acids. The canine and feline treats are sold exclusively through vetrinarians.