Vet's Best Seasonal Allergy Supplements help dogs with seasonal allergy discomfort by supporting proper skin moisture and helping to maintain normal histamine levels. Veterinarian formulated with a blend of premium plant-based ingredients, including nettle leaf, perilla seed and Vitamin E, tasty, chewable tablets can be given to dogs directly or at mealtime. Dog allergy relief that is infused with ocean kelp to support absorption as well as healthy digestion and immune response. Each bottle carries the National Animal Supplement Council (NASC) Seal of Approval.