🛡️ Why Skin Barrier Care Matters in CleansingThe skin barrier is a protective shield made of lipids and skin cells that keeps moisture in and harmful irritants out. When using harsh cleansers, this barrier can be stripped away, leading to dryness, irritation, and sensitivity.ALPCH Nouveaubase Oil Foam Cleanser is formulated with a mild pH of 5.8, making it ideal for maintaining the natural acid..