Calcifediol-d3 is a deuterium labeled Calcifediol. Calcifediol, is an effective VDR ligand and VD supplement. Calcifediol is a prohormone of the vitamin D endocrine system (VDES) and is hydroxylated in the liver to produce the active form, calcitriol. Calcifediol can rapidly increase serum VD levels[1][2][3].
