What Are the Different Skin Types?

The idea of sorting skin into a handful of types took hold in the cosmetics industry well before there was much science behind it, largely as a way to point customers toward the right shelf of products. Over time, dermatology adopted a simplified version of that system, built around two underlying variables: sebaceous gland activity and the skin barrier's ability to hold onto water.

Oily skin sits at one end of that spectrum, producing more sebum than the skin needs, which can lead to shine, enlarged-looking pores, and a tendency toward congestion. Dry skin sits at the other end, producing too little oil or losing water too quickly through a compromised barrier, which shows up as tightness, flaking, or a dull texture. Combination skin, the most commonly self-reported type, simply describes both patterns showing up in different zones of the same face, typically an oilier T-zone alongside drier cheeks. Normal skin describes a relatively balanced middle ground, and sensitive skin describes a heightened reactivity to products or environmental triggers that can technically overlap with any of the other four.

None of these categories are permanent sentences. Sebum production rises and falls with hormones, humidity, temperature, and age, which is why plenty of people find their skin type shifts from oily in their twenties to more combination or normal later on, or drier in winter than in summer. Treating skin type as a rough current description rather than a lifelong label tends to produce far better skincare decisions than treating it as an identity.