The skin’s outermost layer, the stratum corneum, acts as a crucial barrier protecting against environmental irritants, bacteria, and moisture loss. Daily wear—like sun exposure, harsh cleansers, or even over-exfoliation—can weaken this shield. Dermatologists recommend using gentle, pH-balanced products and incorporating ceramide-rich moisturizers to help restore and maintain barrier function. Think of this as preserving the skin’s architecture before decorating it—solid foundations make all the difference