Combination skin, as the name suggests, includes two different skin types or conditions. It is typically characterized by an oily T-zone, which includes the forehead, nose, and chin. This T-zone often exhibits dilated pores and excess sebum, occasionally accompanied by imperfections such as blackheads and red spots. Consequently, this part of the face tends to have an uneven texture and visible pores. In contrast, the skin on the cheeks is usually normal, with no distinctive characteristics other than occasional slight dehydration, which can occur in all skin types.

The skin naturally produces only sebum (a fatty substance) that forms a protective layer known as the hydrolipidic film; however, it does not secrete water.

What are the causes of combination skin?

For those with combination skin, this type of skin tends to produce oil in the T-zone while being dry in other areas of the face. The primary cause is often genetics, but it may also result from hormonal imbalances influenced by factors such as hormones, stress, diet, tobacco use, and humidity. Additionally, using products with aggressive or irritating ingredients, such as alcohol, can dry out certain areas of the face while stimulating oil production in already oily zones (especially around the nose).