ADE Care drops combines the three fat-soluble vitamins; vitamin A and vitamin D. Vitamin A is necessary for proper functioning of the retina. It appears to be essential for the integrity of the epithelial cells as well as for the growth of bone. Whereas vitamin D is considered essential for promoting absorption and utilization of calcium and phosphate and for normal calcification of bone. Vitamin D deficiency leads to rickets in children. Vitamin E is a natural antioxidant that protects cells from oxidative stress.