Similac Infant Formula 1 Up To 6 Months Powder Jar is used for providing balanced nutrition to infants up to 6 months of age. Similac powder contains a carefully selected fat blend that supports easy digestion and calcium absorption. The formula includes essential vitamins such as vitamin A and vitamin D, which may support the development of the immune system and bone health. Whole milk powder and whey protein concentrate are included to support the healthy growth of infants during the early stages of development.