<;P>;PROBLEM TO BE SOLVED: To provide a composite particle having excellent masking effects without using an organic solvent harmful to a human body, and to provide a method for producing the composite particle. <;P>;SOLUTION: The composite particle is obtained by bringing an effective component-containing material into contact with an oil and fat in the presence of the supercritical fluid, and removing the supercritical fluid. The method for producing the composite particle is provided. <;P>;COPYRIGHT: (C)2008,JPO&INPIT