Skin is the largest organ of the human body,which not only serves as a barrier between the external environment and the interior of the body,but also reflects the overall health and beauty of an individual to a certain extent,so skin cosmetology has always been one of the focuses of people's attention.With the continuous progress of science and technology,the field of skincare and cosmetoloogy also continues to emerge a variety of innovative methods and techniques,among which the innovation in material science have had a profound impact on this area.Poly(ε-caprolactone)(PCL)as an important biodegradable and biocompatible polymer has been widely applied due to its excellent properties.This thesis aims to systematically explore the advantages and limitations of applications of PCL in skincare and cosmetoloogy,in order to comprehensively elucidate the value and potential of PCL in the fields of skincare and cosmetoloogy,and to promote further development in related areas.