Our product is safe because we introduce very small amounts of each food one at a time (cow's milk, egg, and peanut) and gradually build up to a maintenance dose. It has been found that allergic reactions in babies are less severe than in children and adults. There has never been a fatal allergic reaction found in infants under the age of one year. Every month you wait, an allergic reaction may get worse. If your baby had an allergic reaction, stop providing our product and contact your medical provider.