Hill’s Prescription Diet Derm Defense

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Contact Information

Phone: +1.800.445.5777


Hill's Pet Nutrition Inc.
P.O. Box 148
Suite 300
Topeka 66601-0148

Hill’s Prescription Diet Derm Defense pet food for dogs with HistaGuard complex is the first and only nutrition formulated to reduce signs of environmental allergies by helping disrupt the internal allergy response and create a barrier against future episodes. HistaGuard complex, a proprietary blend of antioxidants, egg, and phytonutrients containing quercitin, helps continuously normalize the immune response to allergens. In addition, Omega 3 fatty acids and antioxidants such as vitamin E help reduce inflammation and support skin rejuvenation to aid healing, while Omega 6 fatty acids help restore the skin barrier.


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