What is the role of astringents in skin care?

Astringents play a crucial role in skin care primarily by balancing oil production. They contain ingredients that help to tighten the skin and reduce the size of pores, which is particularly beneficial for individuals with oily or acne-prone skin. By constricting the pores and helping to decrease excess oiliness, astringents can aid in controlling shine and preventing breakouts, leading to a clearer complexion.

In contrast to the correct answer, adding moisture to the skin is the function of moisturizers, not astringents. Similarly, while some products may assist in removing makeup, this is mainly the role of cleansers or makeup removers. Soothing irritation relates more to gentle treatments or calming ingredients like aloe vera or chamomile, rather than the astringent's primary purpose. Thus, the central function of astringents is effectively centered on managing oil production and contributing to a balanced skin appearance.