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Our skin lives at night

We often hear that a good night's sleep will do wonders for our skin, leaving it plump and healthy... But where does this come from?

#1 - Chronobiology

chronobiology is the scientific discipline that studies the temporal organization of living beings. It is essentially concerned with the study of biological rhythms.

There are several types of chronobiology: brain chronobiology, dietary chronobiology, sleep chronobiology, digestive system chronobiology and so on.

And then came cutaneous chronobiology, in other words, the study of skin cycles and the impact of these cycles on the appearance of our skin, its health... 

"The skin is also affected by what is known as chronobiology. In other words, its activity varies according to the time of day," says Dr. Martine Baspeyras, a dermatologist specializing in chronobiology. 

That's when we realized that our skin had a real biological clock.

Indeed, during the day, the skin acts as a barrier against pollution, UV rays, wind and anything else that might attack it during the day.

At night, on the other hand, the skin is a little less defensive and you should take advantage of this.

So night creams are no longer just marketing, but have a real purpose ! But what actually happens to our skin at night?

#2 - A cell renewal mechanism

And yes, at night, our skin divides its epidermal cells and devotes all its energy to repairing itself. Dermatologist Marie-Pierre Hill-Sylvestre explains it very well:

" This renewal is actually a process of cell division. The skin's stem cells divide into two. One gradually rises to the surface to carry out its functions, then eliminates itself in the form of the horny layer; the other remains in place and "regains strength" to be able to divide again. "

Cell renewal means repairing scars and blemishes, exterminating dead skin... if you have peeling products to reduce blemishes and scars, or a product containing fruit acids, prefer to use them at night.

Firstly, because they will be more effective, and secondly, because they are photosensitive products, which means they attract UV rays, which can be dangerous for your skin.

#3 - Better blood circulation

Several studies have shown that blood circulation in the skin's vessels is greatest between 11 p.m. and 3 a.m. : a period when cells divide eight times faster! But why?

According to Marie-Pierre Hill-Sylvestre, this is because " Cell renewal requires energy, so it's normal for micro-circulation to be activated.

This peak in circulation allows the skin to eliminate toxins accumulated during the day and to recharge with nutrients. The result is strengthened, revitalized skin. 

#4 - Greater permeability 

When we sleep, our skin is permeable, unlike during the day. This meansit is easier for external agents to penetrate it.

But to achieve this, you must first remove your make-up and cleanse your face of all the impurities accumulated during the day

Then you can apply your skincare products, " What's certain is that our skin is more receptive to skincare products. " says dermatologist Marie-Pierre Hill-Sylvestre. Make the most of this time to apply your skincare products containing the best active ingredients.

#5 - No sleep, no pretty skin

Of course, it's not enough to wash your face, apply your skincare products and go out all night, hoping to have perfect skin the next day.

No, that would be too simple: you have to sleep! Because lack of sleep means bad skin...

A study from Case Western Medical Centre University Hospital in Cleveland, Ohio, showed " that poor sleep quality in chronic insomniacs was associated with increased skin aging and lower satisfaction with skin appearance. "

If the skin doesn't benefit from sleep, itcan't regenerate because it won't have the necessary energy. You may be eating or dancing, so your body will entrust its energy to the stomach to digest and to the body to keep you dancing. And your skin will have very little energy to give you a radiant, plump complexion! 

What's more, lack of sleep promotes an increase in stress hormones. The stress aggravates skin inflammation which leads to blemishes like acne... The worst cocktail for perfectly healthy skin. 

"Lack of sleep disrupts hormone secretion, among other things," notes Dr Martine Baspeyras."This affects sebum production, skin micro-circulation..."

As you can see, sleep is your skin's best friend. So take care of your nightly cycle and sleep at least 7 hours a night for healthy skin!

Which Yodi facial cleanser is right for my skin? 

I'm looking for softness ... Le TRIO D'HUILES : this cleanser contains a blend of organic argan oil, organic safflower oil and organic hemp oil, whose composition complements each other to nourish and soothe the skin. 

I'm looking for radiance... VITAMIN C and HIBISCUS FLOWER ACIDS : this cleanser contains stabilized natural vitamin C to brighten the complexion and reduce the appearance of wrinkles, and Hibiscus flower acids to gently stimulate skin regeneration. 

I'm looking for purity... CHARBON PURIFIANT : this cleanser contains charcoal to purify the skin, coupled with zinc PCA to regulate excess sebum.

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