The purpose of the present invention is to provide a rapid and widely practicable cosmetic-evaluating method for evaluating the performance of candidate cosmetics in improving wrinkles in the horny cell layer. Provided is a method for evaluating the effectiveness in wrinkle improvement of a candidate cosmetic by immersing a horny-cell-layer sheet having creases and wrinkles in the candidate cosmetic, and verifying the disappearance of the creases and wrinkles after drying, whereby the purpose is achieved.
