Skin aging is a consequence of genetically programmed processes of intrinsic aging and extrinsic aging caused by ultraviolet light and other environmental insults. There are many different approaches to reduce or postpone the untoward effects of intrinsic programmed aging and extrinsic environmental injury. The prevention of extrinsic aging utilizes various methods of photoprotection and antioxidants. Treatments of aged skin are not limited to a single procedure but may consist of a combination of many adjuvant treatments each of which offers different degrees of effectiveness, risk, duration and cost. It is important to have an understanding of the likely benefits and limitations of available treatments. Scientific evaluation and education about the modalities available for treatment of aged skin can help to achieve these goals © 2006 Springer.