1. What is Yilijin Lingguan Infant Formula? Yili Jinlingguan infant formula milk powder is one of the brands of Yili Group. It is specially designed for babies aged 1-3 years old and is famous for its high quality, high safety and high nutritional value. This milk powder adopts a unique production process, which can retain the nutrients and natural flavor of milk, while adding a variety of vitamins, minerals and other nutrients to meet the baby\’s growth and development needs.