Abbott Milk-Based Similac® Advance® Complete Nutrition for Your Baby's First Year OptiGro™ Infant Formula with Iron. Concentrated. Must add water. DHA for brain. Lutein for eyes. Vitamin E for development. Birth-12 months. Similac® Advance® may soften stools to be more like those of the breast-fed infant's. Gluten free. Galacto-oligosaccharides are prebiotics sourced from milk (GOS). C. cohnii oil is a source of DHA. m. alpina oil is a source of ARA. Have product-related questions Call 1-800-515-7677, 8:30 am-5:00 pm, Eastern time, weekdays. www.similac.com. ©2015 Abbott Laboratories.