Gerber Good Start Gentle Formula offers complete nutrition for babies up to 12 months. Our Gentle formula features a combination of ingredients for baby?s digestive and immune support. Probiotic B. lactis are active probiotic cultures which support your baby?s digestive healthy. 2?-FL HMO (human milk oligosaccharide) is a probiotic just like those found at significant levels in breastmilk. Studies have shown that HMOs help support digestive health and the immune systems. This product is non-GMO ? not made with genetically engineered ingredients. The first year is important in nourishing baby?s digestive and immune health.