New Roots Herbal’s Children’s Vitamin D3 delivers the biologically active form of vitamin D3 (cholecalciferol) which is produced with exposure to sunlight. Vitamin D3 is critical for the absorption and regulation of calcium and phosphorus levels necessary for strong bones, teeth, and nails. Adequate vitamin D3 levels are crucial during the developmental years of childhood through adolescence. A deficiency of the “sunshine vitamin” can negatively affect childhood development, immune system performance, and mood. At 400 IU per drop, dosage can be easily tailored to suit individual requirements.