Similac Sensitive* is an easy-to-digest milk-based infant formula designed for sensitive tummies. It’s complete nutrition for fussiness † gas † or mild spit-up. Our formula has our exclusive blend of ingredients to help support baby’s brain and eye development. * Not for infants or children with galactosemia. † Due to lactose sensitivity. ‡ Milk ingredients are derived from milk of non-rbST-treated cows which is not different from milk of rbST-treated cows.