No artificial growth hormones (No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows).For babies born prematurely. Enriched nutrition (increased protein, vitamins and minerals compared to term infant formula). DHA for brain. Lutein for eyes. Vitamin E for development. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby. C. Cohini oil is a source of DHA. M. Alpina oil is a source of ARA.