Of interest: "Cosmetic dermatology has long been an important part of the field, and dermatologists have been the primary innovators in this area. In the 1900's dermatologists employed dermabrasion to improve acne scarring and fat microtransfer was used to fill in cutaneous defects. Dermatologists specializing in cosmetic dermatology typically use non-invasive procedures to reverse the signs of aging. Botox has been used since it was FDA approved for the treatment of wrinkles. It is used to minimize wrinkles such as frown lines and crow's feet. Fillers are used to "fill in" lines on the face and to minimize the appearance wrinkles. Brand names of fillers include Restylane, Perlane, Juvederm, Radiesse and Cosmoplast among many others. Dermatologists are also the pioneers of energy based treatments for the skin and these include lasers, intense pulsed light, radiofrequency, infrared light and photodynamic treatments."  (Source: Wikipedia.org)