Skin aggression due to cold
Our epidermis is the only organ on the outside of our body. We expose around 15% of our skin to the open air. It's in direct contact with external aggressors, and therefore most exposed to cold, wind, bad weather, rain, heat, pollution, particles...
Key figures
the skin receives 1/3 of our body's blood circulationit contains more than 2 million sweat glands*, which allow perspiration to evacuate properly.The epidermis regenerates in its entirety every 28 to 30 days. Its external temperature is around 30°C.Knowing all this, we understand that our epidermis plays a major role in regulating our body temperature.
What happens when it's cold?
Cold causes the skin's small vessels to contract and tighten, thus limiting heat loss to maintain our body temperature at 37°C. As a result, the skin is less well irrigated and therefore less well nourished.When the wind adds to the cold, it dries out the skin and strips the epidermis. The result is thicker, drier skin, a dull complexion, chapped lips and a feeling of tightness in certain areas of the face.