Astringent properties are the ability of certain substances to reduce secretions and secretions, contributing to the narrowing of tissues and the reduction of inflammation. These properties are due to the content of tannins and other compounds that bind to proteins on the surface of cells, forming a protective film. Astringents are widely used in medicine and cosmetology to treat wounds, inflammation, bleeding and skin diseases.
In medical practice, astringents are used in the form of solutions, ointments, creams and tinctures to treat damage to the skin, mucous membranes, as well as to stop bleeding. They help to accelerate wound healing, reduce inflammation and prevent infection. Astringent properties are also important in cosmetology, where they are used to care for oily and problem skin, tighten pores and reduce sebum production. Examples of substances with astringent properties include tannins, zinc oxide, aluminum salts, and extracts of certain plants such as oak bark and sage leaves.