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. § Parents reported after switching to Similac Pro-Total Comfort. ‖ No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows. ¶ Ingredients not genetically engineered.