Similac Pro Total Comfort Formula 22.5 Oz Similac Pro Total Comfort Formula is the first gentle formula with partially hydrolyzed protein and 2-FL Human Milk Oligosaccharide (HMO), an immune-nourishing prebiotic like that found in breast milk. HMOs feed good bacteria in the gut, where 70% of the immune system exists. Similac with 2-FL HMO helps strengthen baby's immune system to be more like the breastfed infant than ever before.
