How to use: - Children between 0 - 1 year old : 1 vial fasting, twice a week. It can add to the water or milk of the baby bottle. - Children between 1-3 year old: 1 vial fasting, three days a week. It can add to the water or milk of the baby bottle. - Children between 3 - 7: 1 vial fasting, every other day. After 4- 6 weeks take 2 vials a week to help with the best intestinal equilibrium. - - Children over 7: 1 vial fasting every day. After 4 - 6 weeks take 3 vials a week.