Which of the following is NOT one of the three main types of skin?

The three main types of skin typically recognized in skincare are oily, dry, and combination. Oily skin is characterized by excess sebum production, leading to a shiny appearance and potential for acne. Dry skin is marked by a lack of moisture, resulting in flakiness and tightness. Combination skin exhibits characteristics of both oily and dry skin, often having an oily T-zone while the cheeks remain dry.

Sensitive skin is not classified as one of the primary skin types but rather as a condition that can affect any skin type. It may react adversely to various stimuli, such as products, environmental factors, or allergens, causing redness, irritation, and discomfort. In essence, while sensitive skin is an important concept in skincare, it does not fit within the main three types, which focus more on the oiliness or dryness of the skin overall. This distinction helps skincare professionals tailor their treatments and recommend appropriate products according to the individual's skin type.