All the dermatos repeat: good hydration is the best anti-aging, and the guarantor of a pulpy skin and a luminous complexion.

Yet some dehydration goes unnoticed or their symptoms are misleading. Know how to decode them and find the best assets that your skin claims.

My skin peeled at the level of the eyebrows, on the wings of the nose

And yet she is fat.

Explanation: Dehydration leads to increased secretion of sebum, where germs proliferate. This causes irritation, accentuated by stress or fatigue.

The solution ? Choose moisturizers rich in water, poor in lipids originally intended for acne skins and which will kill the bacteria responsible for itching and dander.

My skin shines but lacks flexibility, shine

Explanation: it lacks surface water. The horny layer must contain 13% of water, but the aggressive cleanings have "pickled" it.

The solution ? Fix the surface water just below the stratum corneum that protects the epidermis, with a supply of water and NMF.

My skin is dull, it pulls and small wrinkles appear around the eyes

Explanation : the water contained in the dermis, ie 80% of the skin water moves by soaking all the layers of the skin. This water flow is called Water Insensitive Loss (PIE). The horny layer (top layer of the epidermis) inhibits this evaporation process because it is protected by a hydrolipidic film on its surface. But it happens that this film no longer plays its anti-leak action. The PIE is accelerating. The skin is increasingly dry, uncomfortable, fragile.

The solution ? Restore an effective NMF to fix the water in the stratum corneum, to add essential lipids to a good barrier effect and to restore a good circulation of water from the dermis to the superficial layers thanks to these small irrigation channels .

My skin is rough, peels and forms small scales on the surface

Explanation : the skin renews itself in a disorderly manner and the water on its surface evaporates too quickly.

The solution ? Before applying a moisturizing and emollient care use very gentle exfoliating agents that will allow moisturizers to penetrate effectively.

With age, my skin is becoming more dry and frizzy and refines

Explanation : during peri-menopause, and hormonal disorders, the water of the dermis evaporates too quickly towards the epidermis.

The solution ? Intakes of lipids (ceramides, Omegas, cholesterol) will curb these anarchic leaks. It is necessary to add complex sugars that will act in synergy with the lipids to curb the insensitive loss of water, like several families of hyaluronic acid (HA). The HA of high molecular weight smooths the skin on the surface, the medium and low molecular weight reinforce the subcutaneous hydration by a "plumping" effect and stimulates the synthesis by the skin.

My skin dries terribly as soon as I am stressed, tired

Explanation: It has just been discovered that in the event of stress the body releases neurotransmitters which ignite the skin, counteract subcutaneous microcirculation, cause tightness, itching and drying of the stratum corneum.

The solution ? Active ingredients that calm the skin flush, desensitize and "co-coat" the skin.

* Thanks to Cyrille Télinge, Founder of Novexpert, Véronique Delvigne, Director of Scientific Communication Lancôme, Dr Philippe Deshayes, consultant dermatologist for La Roche Posay, Marie Hélène Lair, Director of Scientific Communication Clarins, Dr Michèle Sayag, Strategy Director Bioderma Laboratories, Pierre Louis Delapalme CEO of Biological Research.