What is the primary benefit of using a clay mask in skincare?

The primary benefit of using a clay mask in skincare is that clay masks help absorb excess oil and draw out impurities from the skin. Clay, especially types like bentonite or kaolin, has absorbent properties that make it effective for oily and acne-prone skin. When applied, the mask binds to excess sebum and impurities, helping to clear clogged pores and reduce the appearance of breakouts. This detoxifying effect can lead to a clearer and more refined complexion over time.

Other options mention benefits like brightening the complexion, providing deep hydration, and enhancing the effects of serums, but these are not the primary functions of clay masks. In fact, while some masks may provide hydration or enhance other products, clay masks are specifically recognized for their ability to purify the skin and control oil production, which directly addresses common concerns such as acne and shine.