The five skin types in plain terms
Oily skin looks shiny by midday and has visible pores, mostly across the forehead, nose and chin. Dry skin feels tight after washing and can look dull or flaky. Combination skin is oily in the T-zone and normal or dry on the cheeks. Normal skin stays comfortable most of the day. Sensitive skin reacts easily, with stinging, redness or itching after products or weather changes.
The bare-face test you can do at home
Wash with a gentle cleanser, pat dry and apply nothing for 30 to 60 minutes. Then look closely. Shine across the whole face points to oily skin, tightness or flaking to dry, shine only on the forehead and nose to combination, and neither to normal. It is the same check dermatologists often suggest, and it works best in daylight.
Oily and dehydrated at the same time
The most common mix-up is treating shine as proof that skin has enough moisture. Skin can produce plenty of oil and still be short of water, which shows as shine together with tightness, fine flaky patches or makeup that sinks into lines. Dehydration is a temporary state rather than a type, so it usually improves with a lighter cleanser and a humectant moisturizer.
Why combination skin is so common
The forehead, nose and chin carry more oil glands than the cheeks, so many people are oilier in the middle of the face than at the edges. That is why a single product rarely suits the whole face. A lighter gel in the T-zone and a richer cream on the cheeks is a simple, effective way to treat each zone for what it actually needs.
What sensitive really means
Sensitive is less a type than a tendency. It often goes with a weakened barrier that lets irritants in more easily, and fragrance, strong exfoliating acids, alcohol-heavy toners and hot water are frequent triggers. Patch test anything new on the inside of your arm or behind the ear for a few days, and introduce one new product at a time.
Your skin type can change
Skin type is not fixed for life. Seasons shift it, with more oil in humid summers and more dryness in heated winters. Hormones, pregnancy, age, climate, medication and harsh cleansing habits all move it too. Checking again every season, or after a big change, keeps your routine matched to the skin you have now rather than the skin you had a year ago.
How a selfie can read skin type
Radien looks at the visible signals behind each type: how much light your skin reflects, pore visibility, texture, redness and any flaking. For the clearest read, take the photo in daylight without makeup or filters. It is a cosmetic estimate from what a camera can see, so re-check after a few weeks if your skin is having an unusual day.