The subject of this invention is providing the composition for wrinkle improvement which has a moisturizing effect and has the outstanding wrinkle improvement effect. The present invention relates to a wrinkle-improving composition containing a liquid fraction of a high-pressure treated placenta or a treated product of the fraction, and in particular, for improving wrinkles for imparting moisture to skin and making wrinkles due to drying inconspicuous. Relates to the composition.本発明の課題は、保湿作用を有し優れたシワ改善効果を有するシワ改善用組成物を提供することである。本発明は、胎盤の高圧処理物の液状画分又は該画分の処理物を含有する、シワ改善用組成物、特に、皮膚にうるおいを与え、乾燥によるシワを目立たなくするためのシワ改善用組成物に関する。