Skin ageing is a complex process that is determined by both intrinsic and extrinsic factors. which leads to a progressive loss of structure and function. There is extensive evidence indicating that oxidative stress induced by reactive oxygen species plays an important role in the process of human skin ageing. Mitochondria are the major source of cellular oxidative stress and are widel... https://www.roneverhart.com/Doorking-1835-080-Telephone-Entry-System/