Convenient powder singles. Makes 16-4 fl oz bottles. Gluten free. Non-GMO (Ingredients not genetically engineered). Complete nutrition for your baby's first Year. 2'-FL HMO Human Milk Oligosaccharide (not from human milk). For Immune Support: A prebiotic previously only found (at significant levels) in breast milk. OptiGRO: DHA: Brain nourishing. Lutein: Eye health. Vitamin E: Growth & development. Pre-measured powder singles are convenient, portable and ready for you and your baby. Each powder single makes a 4 fl oz bottle. No scooping or measuring. Perfect for diaper bags, travel and late night feedings. Closer than ever to breast milk. Similac Pro-Advance has a dual-immune blend that has 2'-FL, a prebiotic like that found in breast milk. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby. 2'-Fucosyllactose (2'-FL): A prebiotic like that found in breast milk. C. Cohnii oil is a source of DHA. M. Alpina oil is a source of ARA. FeedingExpert from Similac. Help with feeding questions is available at 800-986-8800. FeedingExpert.com. Please consult your baby's doctor before switching formulas. Have a products-related question? Call 1-800-515-7677, 8:30 am 5:00 pm, Eastern Time, weekdays. www.Similac.com.