Formulation development and stability studies of vitamin D3

The term vitamin D actually refers to a pair of biologically inactive precursors of a critical micronutrient. They are vitamin D3, also known as Choleacalciferol, and vitamin D2 also known as Ergocalciferol. Choleacalciferol (D3) is produced in the skin by a photoreaction on exposure to UV light from the sun (wavelength 290 to 320nm). ................
................