Which type of skin is most likely to be oily?

Oily skin is characterized by an overproduction of sebum, which can lead to a shiny appearance and may be associated with acne and other skin issues. Acne-prone skin typically has this excessive oil production as a common trait. This results in blocked pores and the potential for breakouts, making it the most indicative of oily skin among the options presented.

In contrast, dry skin lacks the moisture and oil necessary to maintain a healthy barrier, leading to flakiness and discomfort. Combination skin consists of both oily and dry areas, indicating a mix rather than a purely oily condition. Normal skin is well-balanced in oil and moisture levels, displaying neither excessive oiliness nor dryness. These distinctions clarify why acne-prone skin fits the definition of oily skin the best.