Similac Sensitive is an easy-to-digest, milk-based infant formula designed for sensitive tummies. Its complete nutrition for fussiness, gas, or mild spit-up. Our formula has our exclusive blend of nutrients to help support babys brain and eye development. Similac was the first leading infant formula brand with no artificial growth hormones and is the 1 infant formula brand fed in hospitals. Not for infants or children with galactosemia. Due to lactose sensitivity. No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows.