What is the purpose of a clay mask?

The purpose of a clay mask is primarily to absorb excess oil and detoxify the skin, which is why this answer is correct. Clay masks are formulated with natural clays, such as kaolin or bentonite, that have absorbent properties. They draw out impurities and excess sebum from the skin, making them highly effective for individuals with oily or acne-prone skin. In addition to absorbing oil, clay masks can help unclog pores and improve the overall appearance of the skin by promoting a clearer and more balanced complexion.

While hydrating and plumping the skin, providing antioxidant protection, and exfoliating dead skin cells are important aspects of skin care, those functions are typically associated with different types of masks or skin care products. Hydrating masks often use ingredients like hyaluronic acid or glycerin, while antioxidant-providing products may incorporate vitamins like C or E. Exfoliating masks usually contain ingredients like alpha or beta hydroxy acids, which are designed to remove dead skin cells rather than extracting impurities or excess oil. Thus, the specific qualities of clay make it particularly effective for detoxifying the skin and controlling oiliness, which aligns perfectly with the correct answer.