Nestle NAN Supreme Pro 3 Milk Formula Powder is the first and only growing-up milk to contain a 5-HMO complex inspired by the diversity and ratio of HMOs found in breastfeeding, as well as Gentle Optipro, which supports immunity, digestion, brain development, and metabolism. 5-HMO complexes are the most advanced HMO blend, containing five of the most abundant and structurally similar oligosaccharides present in breastmilk: 2'FL, DFL, LNT, 3'SL, and 6'SL. Gentle OPTIPRO is NAN's optimized protein blend that provides the appropriate amount of protein for your child's healthy development.