Powdered infant formulas are not sterile and should not be fed to premature infants or infants who might have immune problems unless directed and supervised by your baby's doctor. Do not use microwave to prepare or warm formula. Serious burns may occur. Contains milk and soy ingredients. Breastfeeding is best for babies. Your baby's feeding needs will vary based on age and other factors. Always consult your physician or other health care professional regarding your baby's nutritional needs. Do not reuse container. Do not use if inner or outer seal is damaged or missing.