Dr. Obagi’s legacy began with his initial quest to explain skin health, which he defines as skin that is naturally smooth, strong, firm, even-toned, hydrated and free of disease. His definition soon caught on with respected colleagues in the fields of dermatology and plastic surgery. This assisted physicians to achieve better treatment results after determining more appropriate solutions to a patient’s concern, rather than simply focusing on a diagnosis. His pioneering definition also included a Skin Classification System, enabling physicians to determine the best treatments and predict patient response based on an individual’s ethnicity and skin type.