It’s cold outside.

As the cold gets colder and colder, our skin is put to the test. And yes, it's no secret that the cold is far from our skin's best friend!

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.

The reasons

1. Temperatures

Low temperatures, cold winds, high humidity and heating are the main causes of dry skin. When your skin contains more moisture than the surrounding air, it tends to evaporate, depriving you of the moisture you need.What's more, in winter, we tend to spend more time lounging under warm water. This habit can contribute to skin dryness. In fact, hot showers and baths weaken the skin's upper layer, making it more susceptible to irritation.We also tend to overheat our homes. Overheated spaces = dehydrated skin.

2. The lack of vitamin D

Lack of sunlight makes the complexion duller and less radiant. To get a sufficient dose of vitamin D, you need to expose yourself to the sun for at least 15 minutes a day. Lack of vitamin D weakens the immune system and energy levels, which quickly reflects on your skin. So don't forget to oxygenate.