[Problem] To provide technology capable of providing an improvement to the massaging effect of a cosmetic roller which has a roller portion for a user to roll against a skin surface while gripping the cosmetic roller, said improvement being achieved by imparting a suitable vibration to a skin surface or adjusting the contact angle of the roller portion. [Solution] A cosmetic roller (1), by which beauty treatment is performed by contacting and rotating a roller body against a skin surface, has a configuration provided with: a substantially rod-shaped main body portion (10) which is provided with, near the end portions thereof, shaft support portions (11 and 12) for supporting the rotational shafts of two roller bodies in, said main body portion (10) being formed so that the outer periphery in the longitudinal direction can be gripped two rotational shafts (110 and 120) for the roller bodies which project in directions of different predetermined opening angles from the longitudinal direction of the main body portion (10) and two roller bodies (20 and 21) which are rotatable about each rotational shaft. In the configuration, the center position in a cross section perpendicular to the axial direction of a rotational shaft and the position of the respective rotational shaft are positioned eccentrically with respect to each other at least at portions thereof.Lobjet de la présente invention est de fournir une technologie permettant de procurer une amélioration à leffet massant dun rouleau cosmétique qui comporte une partie rouleau quun utilisateur roule contre une surface cutanée tout en tenant le rouleau cosmétique, ladite amélioration étant obtenue par communication dune vibration appropriée à une surface cutanée ou par réglage de langle de contact de la partie rouleau. La solution selon linvention porte sur un rouleau cosmétique (1), grâce auquel on effectue un traitement esthétique par contact dun corps de rouleau avec une surface cutanée et rotation de ce dernier cont
