If your dog has sensitive skin, talk to your doctor about adding Purina Pro Plan Veterinary Supplements Skin Care Dog Supplements With omega-3 Fish Oil and EPA and DHA to his daily routine. This dog supplement for skin features collagen, EPA and DHA, vitamin E, and zinc, which proactively support dogs' skin health, including dogs with sensitive skin. Omega-6 (linoleic acid) and omega-3 (EPA and DHA) fatty acids in these dog chews help the skin maintain its natural protective barrier. Meanwhile, the antioxidant vitamin E for dogs provides antioxidant support, while zinc offers your dog immune support. You can be assured that these sensitive skin dog health chews are high quality, as they have the NASC Quality Seal, meaning they are manufactured to meet quality and compliance standards for pet supplements established by the National Animal Supplement Council (NASC). Feel good serving dog skin care supplements produced in USA facilities with quality and safety you can trust.