Kokkutõmbavad

Kokkutõmbavad, also known as astringents, are substances that cause the contraction of tissues and other bodily fluids. This effect is often perceived as a tightening or puckering sensation, particularly in the mouth. In traditional medicine, astringents have been used for a variety of purposes, including to stop bleeding, reduce inflammation, and treat diarrhea. They are thought to work by precipitating proteins on cell surfaces, which forms a protective layer.

Commonly found in plants, astringent compounds include tannins, which are a type of polyphenol. These are abundant in sources such as tea leaves, unripe fruits like bananas and persimmons, and certain tree barks. In skincare, astringents are used in toners and lotions to help reduce the appearance of pores, control oiliness, and provide a mattifying effect. They can also be found in some mouthwashes and gargles for their perceived soothing and cleansing properties.

While generally considered safe in moderate amounts, excessive use of some astringents can lead to dryness or irritation. The effectiveness and specific applications of kokkutõmbavad can vary depending on the substance and the intended use, ranging from historical medicinal practices to modern cosmetic formulations. Their ability to constrict tissues remains their defining characteristic.