vitamin D acts as a keratinization regulator, helping to improve skin feel and firmness with repeated use. This vitamin is absorbed through the skin’s outer layers. Studies are indicating that vitamin D is an important factor in epidermal cell turnover. It is generally found in combination with vitamin A, as such a mixture appears to help epithelial growth and promote good skin pigmentation. Like vitamin A, vitamin D is a major constituent of many fish and vegetable oils.
ChEBI: Calciol is a hydroxy seco-steroid that is (5Z,7E)-9,10-secocholesta-5,7,10(19)-triene in which the pro-S hydrogen at position 3 has been replaced by a hydroxy group. It is the inactive form of vitamin D3, being hydroxylated in the liver to calcidiol (25-hydroxyvitamin D3), which is then further hydroxylated in the kidney to give calcitriol (1,25-dihydroxyvitamin D3), the active hormone. It has a role as a human metabolite and a geroprotector. It is a seco-cholestane, a hydroxy seco-steroid, a member of D3 vitamins, a secondary alcohol and a steroid hormone.
Cream colored powder. Insoluble in water.
Sensitive to moisture, air and light. . Water insoluble.
VITAMIN D3 may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas.
