In view of the great potential of this plant for cosmetics industry, we dedicated an intensive research program, funded within the EU project, to the detailed characterisation of saponins present in different parts of the plant. The paper describes the first study of seasonal variations of surface activity of soapwort , collected in 2016 from the wild state in Poland. The plants were dried under different conditions and separated into roots/rhizomes, stems, leaves and flowers/fruits. The respective extracts were tested for the ability to reduce surface tension (crucial for the cleansing properties) and to froth (crucial for foaming). In the course of the study we have observed that during the plant lifecycle the surface activity of extracts from individual organs varied significantly. Since soapwort is a perennial plant, the changes probably reflect the saponin content alterations related to their production and storage in the plant for the next season.