Glossary
The classification of skin based on its inherent characteristics: oily, dry, combination, normal, or sensitive. Skin type is largely determined by genetics and reflects the baseline level of sebum production, hydration capacity, and reactivity of an individual's skin.
Oily skin produces excess sebum, has a shiny appearance (especially in the T-zone: forehead, nose, chin), visible pores, and is more prone to acne and blackheads. Dry skin produces insufficient sebum, feels tight after cleansing, flakes or peels, and shows fine lines more obviously. Combination skin has oily areas (typically the T-zone) and dry areas (typically cheeks and jawline), requiring different treatment for different zones. Normal skin has balanced sebum production, small pores, even tone, and few blemishes. Sensitive skin reacts easily to products, environmental changes, or physical contact, producing redness, stinging, or irritation.
The simplest test: wash your face with a gentle cleanser, pat dry, and do not apply any products. Wait 30 minutes. If your skin feels tight and looks flaky, it is dry. If your entire face is shiny, it is oily. If only your T-zone is shiny but your cheeks feel normal or tight, it is combination. If your skin feels comfortable with no tightness or shine, it is normal. If your skin is red, stinging, or irritated from the cleanser alone, it is likely sensitive.
Your skin type is not permanently fixed. Hormonal changes (puberty, pregnancy, menopause), aging (sebum production naturally decreases with age), climate (humidity affects hydration, cold air increases dryness), medications (retinoids, hormonal treatments), and lifestyle changes can shift your skin type over time. Reassessing periodically helps ensure your skincare routine still matches your skin's current needs.
Yes, this is called combination skin, and it is one of the most common types. Many people have oily forehead and nose (T-zone) with dry or normal cheeks. Treating different facial zones with different products is a valid and effective approach.
Skin type is the starting point for product selection. Oily skin benefits from lightweight, non-comedogenic products. Dry skin needs richer emollients and occlusives. Combination skin may need different products for different zones. However, individual experimentation always trumps general guidelines.
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