Idebenone is a powerful antioxidant that can promote the electron transfer of the mitochondrial respiratory chain and thus restore ATP synthesis. Its structure is similar to coenzyme Q10. It is a short branched chain structure analog of CoQ10 with low molecular weight and has been used to repair photoaging skin clinically. In the field of cosmetics, aldebanzene has a good antioxidant effect, which can remove free radicals, inhibit the generation of lipid peroxide in mitochondria, inhibit inflammation, inhibit DNA damage, protect against light damage, and reduce pigmentation. It has been found that the use of idebenone can improve the fine lines and roughness of the skin, and improve the elasticity, color and brightness of the skin. It is a very ideal cosmetic active substance.