Ascorbic acid 2-phosphate metal salt with low calcium content

摘要

One of the object of the present invention is to provide an L-ascorbic acid 2-phosphate metal salt, which causes no clouding and scarcely precipitates or deposits even when added to a cosmetic material or the like having blended therein an organic acid. Disclosed herein is an L-ascorbic acid-2-phosphate metal salt with a low calcium content characterized in that the content of a calcium compound is 500 ppm or less in terms of calcium ion, and production process thereof.