Experience resilient and balanced skin with Algenist AA Barrier Serum. Formulated with Alguronic Acid and Niacinamide, this serum strengthens the skin barrier against pollution and environmental stressors. Its antioxidant-rich formula restores hydration, reduces irritation, and minimizes visible lines and discoloration. Ideal for all skin types, this serum enhances skin’s natural defenses, leaving it fresh, smooth, and revitalized.