Nestle Lactogen 1 Refill Powder 400gm is used for supporting the overall well-being of infants. It is a spray-dried infant formula designed for infants from birth when they are not breastfed or are exclusively top-fed. It contains the probiotic L. reuteri which may help support gut health. This formula provides essential nutrients to support your baby's growth and development during the early stages of life. 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.