Dryness and dehydration

Dryness and dehydration

All skin types are affected by dehydration. In order to regain long-lasting protection and comfort, water balance must be restored.

Doctor's opinion

Questions / Answers
  • Upper limbs          o Smooth from the wrist to the armpits - Torso     o Place your hands, completely flat, at the base of the stomach o Make large, circular movements, moving up towards the neck, keeping the hands parallel, o At the neck, move your hands down across the shoulders with an embracing movement,           o Place your hands under the armpits, put the child to sit down with their head against your shoulder. - Back   o Place your hands on the small of the back, o Make large, circular movements, moving up towards the nape of the neck o For a more relaxing effect, massage the back with the child lying flat on the stomach, using a technique similar to that used for the torso. - Nape of the neck o Make circular movements,           o If necessary, move upwards to the ears; massage with the tips of the fingers making sure to include the point between the earlobe and the cheek. - Face      o Warm the cream on your fingers only, massage using your fingers, but keeping both hands symmetrical,     o Place the fingers flat on the top of the forehead, move down to the temples and then to the nose by sliding your fingers under the eyes o Move down to the nostrils,        o Smooth hands over the cheeks and move down to the neck, passing hands over the chin, o If necessary, apply the emollient to the eyelids, the mouth and the corners of the lips with the tips of your fingers.

  • Put the child to lie down. Before massaging each area, take a small quantity of the emollient and warm it between your hands. - The lower limbs • Smooth from the ankle up to the upper thigh. • Begin at the back then move to the front. - Hands • Place the child’s hands on your fingers, • Massage by rotating your thumbs, • Massage the back of each hand from the tips of the fingers to the wrist. - Feet • Place the child’s foot on your thigh and place your hands at the top of the ankle, • Massage by rotating your thumbs, • Massage the sole of each foot, moving up from each toe towards the ankle,   • Massage the base of each foot with the thumbs as well as each toe.Les membres supérieurs - Lisser du poignet aux aisselles > Le tronc - Poser les mains, bien à plat, au bas du ventre, - Faire de grands mouvements circulaires en remontant vers le cou, avec les mains parallèles, - A la hauteur du cou, les mains descendent le long des épaules par un mouvement enveloppant, - Placer les mains sous les aisselles, asseoir l’enfant, placer sa tête contre votre épaule. > Le dos - Poser les mains en bas du dos, - Faire de grands mouvements circulaires en remontant vers la nuque. - Pour un effet relaxant plus important, le dos sera massé à plat ventre, technique, semblable à celle du tronc. > La nuque - Faire des mouvements circulaires, - Si nécessaire, remonter jusqu’aux oreilles ; les masser du bout des doigts sans oublier la jonction entre le lobe et la joue. > Le visage - Chauffer la crème uniquement sur les doigts, masser avec les doigts mais avec les 2 mains symétriques, - Poser les doigts à plat sur le haut du front, descendre sur les tempes et revenir sous le nez en glissant sous les yeux, - Descendre sur les ailes du nez, - Lisser les joues et descendre sur le cou en passant sur le menton, - Si nécessaire, appliquer l’émollient avec le bout des doigts sur les paupières, la bouche et les commissures des lèvres..

Dryness and dehydration

About 60% of the entire human body, including the dermis, is made up of water. This is not the case for the epidermis, which has a surface layer acting as an interface between the very humid inner environment and the outside air which is much drier. The epidermis contains 20 to 30% water and its outermost layer, the stratum corneum, contains 10 to 20%. This stratum corneum has a particular structure, often compared to a wall made of bricks (the corneocytes) and cement (the intercellular lipids), which prevents water from evaporating from the body.



Whether you have naturally dry, combination, normal or oily skin, it can become dehydrated by environmental aggression.



Certain types of skin are naturally better hydrated or less dry than others. Dry skin, whether simple xeroses, xeroses from atopic dermatitis, or ichthyosis, contains much less water than normal skin. This dryness is caused by irregularities in lipid (ceramides) or protein metabolism (proteases, filaggrin) or even by epidermal differentiation problems.

“Ordinary" dry skin :  
  • Simple xeroses are the most common. These are easily corrected by applying emollients.
  • Senile xerosis: is more pronounced on the limbs.
  • Winter xerosis occurs when simple xerosis is intensified with cold and wind.
  • Induced xerosis refers to skin dehydrated by cleansing products that contain overly harsh surfactants (soaps). In the same way, irritant treatments (retinoids, fruit acid) dry out the skin.

Dry skin disorders:

  • Atopic xerosis: atopic dermatitis or infantile eczema includes dryness of the skin that is more or less intense. Linked to structural irregularities in the epidermis, this type of dryness is responsible for the penetration of allergens and for water loss through the epidermis.

  • Some severe nutritional deficiencies can provoke or worsen dryness of the skin.

  • Some general diseases can cause the skin to become dry.

  • Ichthyoses: these are rare genetic or acquired diseases, with varying severity

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