Oklahoma Cosmetology Board Practice Exam

What is a common characteristic of oily skin?

1. Dull appearance

2. Flaky patches

3. An excess of sebum production

4. Dryness in the T-zone

The correct answer is: An excess of sebum production

Oily skin is characterized primarily by an excess of sebum production. Sebum is the natural oil produced by sebaceous glands to help keep the skin moisturized and protected. When these glands produce too much sebum, it can lead to a shiny appearance on the skin's surface, enlarged pores, and a tendency to develop acne or blackheads. This elevated level of oil can result from various factors, including hormonal changes, diet, and even environmental influences. Understanding this characteristic is crucial for providing appropriate skincare advice and treatments for individuals with oily skin. The other options reflect characteristics that are typically associated with different skin types. For instance, a dull appearance is often seen in dry or dehydrated skin, while flaky patches are more indicative of dry skin conditions, and dryness in the T-zone suggests a combination skin type rather than solely oily skin.