Similac Classic New Stage 3 From 12 to 18 Months Follow Up Formula Powder Refill is used for supporting healthy nourishment during early infancy. This formula delivers essential nutrients that assist in physical development, cognitive function, and overall wellbeing from 12 to 18 months of life. The blend of proteins, vitamins, minerals, and fatty acids manages balanced nutrition when breastfeeding is not possible. The formulation helps digestion through a carefully designed nutrient profile that suits an infant's sensitive system. It also supports healthy brain and immune development by offering crucial micronutrients required in early growth stages.