Where are closed comedones usually found on the face?

Closed comedones, commonly known as whiteheads, typically form when hair follicles become clogged with sebum and dead skin cells. They are most often found in areas of the face that are more prone to oil production and have a higher density of sebaceous glands. The cheeks, jawline, and chin are regions that fit this criteria, making them the most common sites for closed comedones.

The forehead and nose, while they can also experience comedonal acne, are generally more associated with open comedones (blackheads) due to the larger pores in those areas and increased exposure to air, which causes the sebum to oxidize and darken. Areas under the eyes and temples usually have fewer oil glands, making them less likely to develop closed comedones. The scalp typically does not experience closed comedones as frequently as the facial skin does, as the scalp environment differs significantly and tends to have more hair follicles than the smooth skin of the face.