How does astringent work on the skin?

Astringents are substances designed to tighten or constrict body tissues, and when applied to the skin, they specifically work by helping to reduce excess oil and tighten pores. This action is particularly beneficial for individuals with oily or acne-prone skin, as it can limit the amount of oil produced by sebaceous glands, leading to a less shiny appearance and potentially preventing clogged pores that can cause breakouts. The astringent properties help to firm the skin, which in turn reduces the visibility of pores, making the skin appear smoother.

While effecting hydration, exfoliation, and cell regeneration are important for skincare, they are functions associated with different types of products and not the primary mechanism of astringents. Hydrating ingredients are generally emollients or humectants, exfoliants focus on removing dead skin cells, and products that promote skin cell regeneration may contain active ingredients like retinoids or growth factors. Each of these functions serves a distinct purpose in skincare, separate from the astringent's main role of constricting pores and controlling oil levels.