Allergies are the worst and can make your dog feel lethargic, stressed, tired and annoyed. Does your dog remain depressed and does not enjoy food as well as his favorite day-to-day activities? Get medically approved probiotics, natural supplements, anti-allergy products to boost their immune system. The products Vitality Science offers help relieve common dog allergies such as skin irritations, chronic ear infections, coughing and sneezing.