No artificial growth hormones (no significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows). Our closest formula to breast milk. Immune support. Brain & eye development. Lutein. Vitamin E. 2'-FL HMO human milk oligosaccharide (not from human milk). DHA. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby.