Arizona Cosmetology Practice Exam

Face masks designed for oily skin often contain clay or activated charcoal as key ingredients. Both of these components are effective in absorbing excess oil, which is a primary concern for individuals with oily skin. Clay, such as bentonite or kaolin, has the ability to draw out impurities and excess sebum from the skin, helping to reduce shine and prevent clogged pores, which can lead to breakouts. Activated charcoal functions similarly by attracting and binding to dirt, oil, and toxins on the skin's surface, providing a deep cleansing effect.

In contrast, the other options are typically used for different skin concerns. Glycerin is a humectant that helps retain moisture, making it more suitable for dry skin. Aloe vera is known for its soothing and hydrating properties, often used for sensitive or irritated skin types. Shea butter is a rich emollient that provides intense hydration, making it ideal for dry skin but not suitable for oily skin, as it can exacerbate greasiness. Thus, clay or activated charcoal is the appropriate choice for formulations targeting the issues associated with oily skin.