Vitamin D ELISA kits are assays designed to detect vitamin D, also known as calciferol. Fat-soluble and synthesized by the skin using UVB exposure, the molecule aids in intestinal absorption of calcium, phosphate and magnesium. It also plays an important role in calcium metabolism. There are two forms of vitamin D that are important to humans: D3 (cholecalciferol) and D2 (ergocalciferol). Hydroxylation of vitamin D at carbon 25 yields the hormone calcifediol or 25(OH)D. Deficiencies in vitamin D may lead to rickets or osteomalacia. Visit the supplier page for more information about detection target, range and reactivity.