Herbal Defense is a natural solution designed by veterinarians to deter biting insects from the inside out creating a bitter scent to the skin. Unlike chemical insecticides, it contains no harmful substances and is safe for pets of all ages. This herbal blend is particularly beneficial for dogs and owners who are sensitive to chemical sprays. Simply sprinkle it on your pet’s food or treats twice a day for five days to provide one month of protection. The effects can be observed in as little as 5-10 days, and the dosage can be repeated as needed based on your pet’s activity level and the season.