Is there a term from the field of dermatology and cosmetics that you do not understand? Would you like to know what it means? View the full definition from the La Roche-Posay glossary.
The term skin barrier refers to the corneal layer – the upper layer of the epidermis – as well as the hydrolipidic film that covers it. When this hydrolipidic film is affected by a lack of water or lipids, for example, the skin no longer acts as a physical barrier. It thus becomes more permeable to allergens.
This word belongs to the categories Sensitive and intolerant skin, Extremely dry, irritated and atopic skin, For sensitive or sun allergy-prone skin, Dry and uncomfortable skin, Oily skin with imperfections.