PHOTOCHROMIC COMPOSITE OXIDE AND COSMETICS CONTAINING THE PHOTOCHROMIC COMPOSITE OXIDE

摘要

The present invention provides a photochromic compound oxide of Ti, Fe and Si which may contain Al and a cosmetic comprising the above photochromic compound oxide which, even when a light quantity change instantaneously occurs as in taking a photographic picture with the use of flashlight, exhibits satisfactory changes in lightness and color difference in accordance with the above instantaneous light quantity change. <IMAGE>