Ostelin Infant Vitamin D3 Drops helps bone development and supports muscle & immune function Ostelin Infant Vitamin D3 Drops are perfectly suited to breast feeding babies and can offer a convenient dosing format for older children up to 12 years. Vitamin D is important for infant wellbeing as it helps to form and maintain strong bones. Vitamin D also promotes calcium absorption, which aids in the development and maintenance of teeth. Adequate Vitamin D intake cannot generally be obtained from diet alone, and those who are dark-skinned and breast-fed may require additional Vitamin D in the form of supplementation to maintain an adequate Vitamin D level. Vitamin D is also important for a healthy immune system and optimal strength and functioning of the skeletal muscle. Size: 2.4ml