Our website uses our own cookies and those of third parties in order to customise browsing, and in order to improve your services by analysing the users surfing habits. By continuing to browse, you agree to use it in accordance with our Cookies Policy. See more information / X


Dermatology Dermatology

Dry skin

See web

The skin covers the entire human body, thus forming the body surface. The outermost part is called the stratum corneum (dead epithelial cells full of keratin) and an emulsion of water, fatty substances and cell remnants, which coat it completely, known as the hydrolipidic film. This film is the chemical barrier, overlapping the physical barrier of the stratum corneum, which acts by making the skin impermeable.

The hydrolipidic film

The hydrolipidic film can be considered the natural cosmetic of the skin, with emulsifying and moisturising properties. Both external factors (continuous contact with detergents, solvents or irritating substances, the sun, etc.) and internal factors (genetics, ageing, diseases, etc.) involve impairment leading to dry skin or xerosis cutis.


Dry skin has major implications in dermatology. The skin is usually thin and fragile, which becomes irritated and swells easily (dermatitis, ezcema, etc.). It has a taut, dull and cracked appearance, with a superficial degree of flaking and the presence of wrinkles. It is particularly common in children under 10 years and in adults over 60 years of age. It stems mainly from a lack of natural moisturising factors (NMF) such as urea, fatty acids, sodium, amino acids, etc.), that are commonly found in the hydrolipidic film.


Más Share