Photoaging

Patent Granted Photoaging or photoageing[1] (also known as "dermatoheliosis"[2]) is a term used for the characteristic changes to skin induced by chronic UVA and UVB exposure.[3]:29 Tretinoin is the best studied retinoid in the treatment of photoaging[4] The deterioration of biological functions and ability to manage metabolic stress is one of the major consequences of the aging process. Aging is a complex, progressive process that leads to functional and esthetic changes in the skin. This process can result from both intrinsic (i.e. genetically determined), as well as extrinsic processes (i.e. environmental factors).