The follow-up mixture Aptamil is available in a total of three stages. The first stage is for the infants whose age lies between 0 to 6 months. The second stage formula is for babies whose age lies between six to twelve months and the third stage Aptamil follow-up formula is for babies whose age lies above twelve months. This stage 2 follow-up formula consists of properly balanced nutrients like vitamins, minerals, zinc, iron, etc. which are important for the growth of your child and to develop their healthy immune system. This mixture is a substitute use on behalf of the powdered milk for the babies lying between the age group six months to twelve months. It also contains important Vitamins which play a vital role in developing the immune system of the babies and all equally contribute to the healthy growth of the baby. Stage 2 formula consists of vitamins like A, B, D, and E.