Device for preventing skin sag and wrinkles, formed by two main parts, i.e. a tuning fork and pyramid-shaped stone which are permanently joined together by means of cold-soldering. The device is configured so that the vertex of the pyramid is inserted inside the free end of the bored base of the tuning fork. The tuning fork may have two, three or four arms. For professional use it may have a cylinder at the end of each arm. Joining together of the two main parts may be performed by means of a hollow middle part which at one end is inserted iside the tuning fork and at the other end is joined to the pyramid. The device is used in the cosmetics sector in order to remedy skin sag, smooth skin wrinkles and rejuvenate and brighten up the face and other parts of the body.