Baby's Vitamin D3 liquid makes it easy to give your baby the American Academy of Pediatrics recommended daily dose of essential vitamin D to support healthy infant development. In just one drop this 400 IU Vitamin D3 helps your baby build strong bones, supports immune system development in infants ages 0-12 months and develop healthy sleep cycles. Made with organic extra virgin olive oil and includes measured dropper for easy and accurate dosing getting baby the vitamin D3 it needs has never been easier.