Lipid Matrix Mechanics: Physiological Ratios and Safety Standards in Restorative Korean Formulations
Adopting a barrier-first skincare approach allows the stratum corneum (the outermost layer of the epidermis) to retain essential moisture while minimizing trans-epidermal water loss (TEWL, the passive evaporation of water from the body through the skin). Prolonged exposure to low humidity, surfactant-heavy cleansers, and aggressive chemical exfoliants destabilizes this intercellular matrix, rendering the skin vulnerable to exogenous (external) irritants.