During the first months of life, a baby’s digestive system needs to adapt to the new environment. This is a natural process that may lead to a baby’s discomfort such as colic, excess crying, and constipation. Nestlé Lactogen 1 is a spray dried infant formula with Probiotic (L.reuteri) for infants from birth when they are not breastfed or (exclusively top-fed). Please consult your healthcare professional for guidance. Nestlé Lactogen 1 Infant Formula Powder contains Whey Protein. Proteins are the primary structural and functional components of every living cell. Whey protein is a component of milk which are easy to digest. Nestlé develops infant nutrition products backed by evolving science and research. Innovation has been at the heart of Nestlé since its beginning.