Dermalogica’s Circular Hydration Serum deeply quenches the skin with enhanced Hyaluronic Acid for immediate and prolonged hydration. The Algae Extract matrix, combined with Polyglutamic Acid, ensures moisture is locked in, making it ideal for dry, parched skin.A gentle blend of postbiotics, including Lactobacillus Ferment and Avena Extract, nourishes the natural microbiome, making it suitable for all skin types. Plant-derived sugars and amino acids contribute to a firm, smooth, and radiant complexion while preventing future moisture loss.