| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composite powder treated so as not to elute an ultraviolet light absorber to the skin surface, to provide a method for producing the composite powder and to obtain a cosmetic having higher safety and containing the composite powder formulated therein. SOLUTION: This composite powder containing an ultraviolet light absorber is produced by coating the surface of a powder with a metal oxide gel containing the ultraviolet light absorber. The metal oxide gel is prepared from a starting solution containing a metal alkoxide, e.g. tetraethoxysilane, water, an alcohol, an acid and the ultraviolet light absorber according to a sol-gel method. The composite powder containing the ultraviolet light absorber is formulated in a cosmetic in the same manner as that of a usual cosmetic to afford a cosmetic having higher safety.
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