Easy to digest gentle protein & prebiotics. Complete nutrition for delicate tummies. For immune support, a prebiotic previously only found (at significant levels) in breast milk. Powder milk based. 2'-FL HMO. Human Milk Oligosaccharide (not from human milk). Over 30% more (31.9% more vs. Similac Pro-Total comfort 1.41 lb powder formula). Optigro. DHA: Brain nourishing. Lutein: Eye health. Vitamin E: Growth & 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. Have product-related questions? Call 1-800-515-7677, 8:30 am - 5:00 pm, Eastern time, weekdays. www.similac.com. FindingExpert from Similac. Help with feeding questions is available at 800-986-8800. FeedingExpert.com. Please consult your baby's doctor before switching formulas.