Similac Pro-Total Comfort* is a gentle formula with 2'-FL human milk oligosaccharide† (2'-FL HMO), an immune-nourishing prebiotic like that found‡ in breast milk that supports baby's developing immune system. It's an easy-to-digest formula for babies with fussiness, gas, and crying who have difficulty tolerating other milk-based formulas. * Not for infants or children with galactosemia. † Not from human milk. ‡ At significant levels. § Milk ingredients are derived from milk of non-rbST-treated cows, which is not different from milk of rbSTtreated cows. || Ingredients not genetically engineered.