An object of the present invention is to provide a method for removing geniposide or genipin or both from a material containing geniposide or genipin or both.The present invention is a method for removing geniposide or genipin or both from a material containing geniposide or genipin or both,the method comprising treating the material containing geniposide or genipin or both using an activated carbon having(a) a methylene blue adsorption ability of 50 ml/g or more; and(b) an iodine adsorption ability of 750 mg/g or more, thereby removing geniposide or genipin or both.