New York State Cosmetology Practice Exam

Oily skin is characterized by excessive oil production, which is primarily due to overactive sebaceous glands. This type of skin often appears shiny, especially in the T-zone (forehead, nose, and chin), and is more prone to acne, blemishes, and enlarged pores. The increased oil can create an environment conducive to bacterial growth, leading to further skin concerns.

In contrast, dry skin lacks sufficient moisture and tends to feel tight, rough, or flaky. Combination skin exhibits characteristics of both oily and dry skin, often having oily areas and dry patches. Sensitive skin is characterized by heightened reactions to products and environmental factors, but it does not necessarily involve excessive oil production. Understanding these distinctions is crucial for effective skincare management and product selection.