Skin barrier restoration

Skin barrier restoration" refers to the process of re-establishing the structure and function of the skin’s external layer, the stratum corneum and its associated lipid and protein components. The integrity of the skin barrier relies on a coordinated assembly of corneocytes (dead keratinocytes), extracellular lipids (predominantly ceramides, cholesterol, and fatty acids), and structural proteins (such as filaggrin, loricrin, involucrin, and claudins) that together limit water loss, defend against pathogens, and maintain immune balance. Disruption of the barrier, as seen in diseases like atopic dermatitis and psoriasis, leads to increased permeability, dehydration, and inflammation. Restoration strategies focus on replenishing depleted lipids, promoting key protein expression, regulating skin pH, and reducing inflammation to recover barrier function and support skin health[2][3][4][5][7][9].

Other names

Skin barrier repairrestoration of skin barrier functionepidermal barrier restoration

Enhancement of lipid synthesis (e.g., ceramides, cholesterol, free fatty acids)[2][3][8], Promotion of protein expression (e.g., filaggrin, loricrin, involucrin, claudins, aquaporin-3)[1][9], Suppression of inflammatory cytokines (e.g., TNF-α, IL-1β)[1][7], Maintenance of acidic skin pH[5]