Skin Barrier Function Enhancement via Occlusive and Humectant Action (null)

The target "Skin barrier function enhancement via occlusive/humectant action" refers not to a single molecule or receptor but rather to a therapeutic strategy that uses specific classes of skincare ingredients—humectants and occlusives—to improve and maintain healthy epidermal barrier function. Humectants attract moisture into the outermost layer of the epidermis (stratum corneum), while occlusives form a protective film on top that prevents this moisture from evaporating. This combined approach supports optimal hydration levels within the stratum corneum by mimicking natural physiological mechanisms such as those mediated by filaggrin breakdown products ("natural moisturizing factor") and intercellular lipid matrices. The strategy is widely used in managing dry skin conditions such as atopic dermatitis and other inflammatory dermatoses where compromised barrier function leads to increased transepidermal water loss. The effectiveness can be monitored using biomarkers like TEWL measurements or clinical scoring systems such as SCORAD for atopic dermatitis patients.

Other names

Moisturization strategy via occlusives and humectantsSkin hydration therapy with occlusives/humectants

Humectants: Attract water from the environment or deeper layers of the skin into the stratum corneum to increase hydration. - Occlusives: Form a protective layer on the surface of the skin to prevent moisture loss by evaporation (transepidermal water loss). - Emollients: Fill gaps between skin cells to smooth and soften the skin while helping retain moisture; some also have mild occlusive properties.