Similac Isomil Soy Infant Formula is a spray-dried infant formula that is soy-based, milk-free, and lactose-free. Similac Isomil powder is formulated for infants with lactose intolerance, milk allergy, diarrhea, and galactosemia. Important Fatty Acids, Vitamins, and Minerals (such as Calcium and Iron) are all known to help a baby's overall wellbeing. Isomil powder contains calcium, which aids in the formation of strong bones; taurine, which aids in the development of the mind and body; vitamins and minerals, which aid in overall growth and development. Before you begin making the formula, make sure your hands are clean with soap and water. Ensure that the bottle, nipple, cap, and other utensils are all sterilized. Fill the bottle with the contents as directed on the product. To ensure that the contents are correctly mixed, give it a good shake. The net weight is 400 grams. This powder is not meant to be stored in refrigerator.