Clinically proven to strengthen skin barriers while deeply hydrating sensitive skin What you get: The ultimate skin barrier serum for year-round protection. This dual-action ectoin formula deeply hydrates while repairing damaged skin barriers to combat environmental stressors like pollution, air conditioning, and UV damage. Why it works: 2% Ectoin acts as a clinically-proven barrier stabilizer, calming irritation and preventing moisture loss in compromised skin. Multi-Molecular Hyaluronic Acid restores hydration up to 10 layers deep, while our Barrier Blend with 3 Ceramides strengthens skin's natural defenses. How it feels: Lightweight, silky texture that melts into skin without tackiness. Delivers instant hydration with all-day barrier protection for comfortable, resilient skin. When to use: Apply AM and PM after cleansing, before moisturiser. Essential serum for damaged barriers, sensitive skin, and daily environmental protection.