Similac Advance infant formula is nutritionally complete, milk-based, iron-fortified infant formula for use as a supplement or alternative to breastfeeding.Similac is the #1 infant formula brand chosen by moms and the #1 brand fed in hospitals,(Total US infant formula all outlets as of 6/6/15, Nielsen data)Features OptiGRO, an exclusive blend of DHA, Lutein, and Vitamin E- important ingredients found in breast milk. Designed to support your baby's developing immune system, brain, and eyes, and to help build strong bones. Calcium for strong bones & no palm olein oil.