hydrolipidbarriär

Hydrolipidbarriär, also known as the skin barrier, is the outermost protective layer of the skin. It consists of two main components: a hydrated layer (containing water) and a lipid layer (composed of sebum, ceramides, and cholesterol). This dual-layer structure acts as a physical and chemical shield, preventing the entry of external irritants (such as pollutants, microbes, and UV radiation) while retaining internal moisture to maintain skin hydration and integrity. The barrier’s functionality is crucial for skin health; when compromised—often due to dryness, inflammation, or harsh skincare—symptoms like sensitivity, itching, or dryness may arise. Proper care, including gentle cleansing and the use of moisturizers, helps sustain a healthy hydrolipidbarriär.