1. Types of formula milk powder 1.1 Infant formula milk powder 1.2 Children\’s formula milk powder The infancy and early childhood period are the most critical periods for a child\’s growth and development, and milk powder is the baby\’s main source of nutrition. On the market, there are many different types of formula for parents to choose from. Among them, the most common ones are infant formula and children\’s formula. 1.1 Infant formula milk powder is for babies aged 0-12 months.