What effect does an astringent have on the skin?

An astringent is a substance that causes the contraction of tissues, particularly skin and blood vessels. This action leads to a drying and cleansing effect on the skin. Astringents work by removing excess oil and debris from the skin's surface, which can be particularly beneficial in treating oily skin or acne. By reducing oiliness and tightening the skin, astringents help minimize the appearance of pores.

In contrast, moisturizing agents are designed to add moisture to the skin, soothing products typically aim to calm irritation or inflammation, and nourishing substances are meant to provide essential nutrients. Therefore, the unique property of astringents, which is their ability to dry and cleanse, distinguishes them from other categories of skin products.