Enfamil PREMIUM Infant. Part of Enfamil Staged Formulas, along with Enfamil PREMIUM Newborn and Enfagrow PREMIUM Toddler. Enfamil PREMIUM Infant is clinically proven* to improve brain and eye development in babies up to 12 months. And it also provides the nutrients needed for healthy physical growth and development, including Natural Defense Dual Prebiotics to support the immune system. Your Babys Digestive Tract. Home to 70% of His Immune System. Our dual prebiotic blend is designed to work longer in the digestive tract for more complete support compared to our previous formulas. Prebiotics feed the good bacteria, found naturally in the digestive tract where 70% of your baby"s immune system is located. And emerging science suggests prebiotic may support your baby"s developing immune system. With Enfamil PREMIUM Infant you can give a formula designed to help support your baby"s natural defenses. Proven healthy development for your baby. Enfamil PREMIUM Infant still has Triple Health Guard. It"s a clinically proven* formula to promote growth, to improve* brain and eye development, and to support the immune system too. Including new Natural Defense Dual Prebiotics and Triple Health Guard, Enfamil PREMIUM Infant provides your baby complete nutrition at every feeding, in a formula designed to help support his immune system. *Studies compared Enfamil with DHA and ARA vs. discontinued Enfamil without DHA and ARA. Improvements shown to 18 months for brain and eye development. Studied before the addition of prebiotics. Information current as of August 12, 2010.