Transepidermal water loss reduction (TEWL reduction)

Transepidermal water loss reduction" is not a molecular target such as a receptor, enzyme, or transporter. Instead, it refers to the process of decreasing the evaporation of water through the outermost layer of the skin—the stratum corneum. This physiological process is crucial for maintaining healthy skin barrier function and preventing dehydration, irritation, and other signs of compromised skin health. Excessive transepidermal water loss can result in weakened barrier function and increased vulnerability to environmental stressors. Various skincare products aim to reduce TEWL by reinforcing the skin’s natural moisture retention mechanisms using ingredients like hyaluronic acid complexes and occlusive agents[1].

Other names

Transepidermal water loss (TEWL) reductionTEWL preventionSkin barrier hydration improvement

Moisturization Barrier reinforcement Reduction of water evaporation from the stratum corneum[1]