Similac is the first and only leading infant formula brand with no artificial growth hormones ( No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows). Similac Organic is certified-USDA organic, has no antibiotics or palm olein oil, and is also non-GMO (Ingredients not genetically engineered.). Our exclusive blend has DHA, Lutein, and Vitamin E, to help support your baby's brain and eye development. You can trust Similac Organic, the No. 1 organic formula brand recommended by pediatricians, and Similac, the No. 1 brand chosen by moms (Total US infant formula, all outlets as of 3/31/2018, Nielsen data.).