Ask your baby's doctor about infant formula feeding, including how much to feed and the need to sterilize (boil) preparation utensils before preparing formula. Good Start is a routine formula brand. If you suspect your baby is allergic to milk, use only under a doctor's supervision. When switching formula, a gradual transition is best. Your baby's health depends on carefully following the preparation, use, and storage instructions. Always wash your hands and utensils before preparing formula. Clean carton top, shake well and open. Do not add water. Pour formula into bottle and feed baby immediately or refrigerate and use bottle within 24 hours. Once feeding begins, use within 1 hour or discard. Storage: Cover opened carton, refrigerate and use within 48 hours. Store unopened cartons at room temperature. Avoid extreme storage temperatures.