Ddrops® Kids Booster provides the daily recommended intake of vitamin D in just one drop for children over 1 year of age. Each drop contains 600 IU of pure vitamin D to support growth and development of strong bones, muscles, teeth and immune functions. Health Canada recommends that all children over 1 year of age receive a daily vitamin D supplement of 600 IU. Dosage: For children over 1 year of age: Take 1 drop a day, or as directed by a healthcare practitioner. Dispense drop onto food, drink or may be licked off a clean surface such as the back of a washed hand.