Infant Probiotic Powder for your littlest ones! Comfort and happiness begins in the gut and this is especially true for our littlest ones. This infant probiotic powder is for infants and toddlers who can’t take chewables just yet. It is a 10-species probiotic blend, designed to safely meet the metabolic, intestinal, and immune support needs of infants and young children. This formula from Klaire Labs supports a normal infant microbiota that can be easily disrupted by cesarean section delivery, formula feedings, medications, environmental exposures, or maternal diet.