Why do I have a dry skin?

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1. A Weakened Skin Barrier

Dry skin is often the result of a weakened skin barrier that is unable to retain moisture effectively. This barrier, composed of lipids and skin cells, acts as a natural protection against external aggressions. When it is compromised, water evaporates more easily from the skin, leading to dehydration and a sensation of dryness. The causes can be varied: exposure to extreme temperatures, the use of harsh products, or even genetic factors.

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2. Insufficient Sebum Production

Sebum, an oily substance produced by the sebaceous glands, plays a crucial role in maintaining skin hydration. It forms a protective layer on the surface of the skin, preventing excessive water evaporation. When sebum production is insufficient, this protective layer becomes too thin, leaving the skin vulnerable to dehydration. This phenomenon is often exacerbated by age, as sebaceous glands become less active over time.

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3. Environmental and Lifestyle Factors

Many environmental factors can also contribute to dry skin. Cold weather, wind, dry air in winter climates, as well as prolonged exposure to artificial heat sources like heating, can dry out the skin. Additionally, certain lifestyle choices, such as taking hot showers or baths, excessive use of harsh soaps, and insufficient hydration (drinking too little water), can worsen skin dryness.

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In summary, dry skin is generally caused by a combination of external and internal factors, including a weakened skin barrier, insufficient sebum production, and environmental or lifestyle influences. Adjusting your skincare routine and environment can help prevent and alleviate skin dryness.