Dermalogica Circular Hydration Serum is a hydrating facial serum for all skin types. Start your skin's hydration cycle with the new Circular Hydration Serum. Dermalogica which provides immediate hydration, nourishing the skin from within and helping prevent future moisture evaporation. An all-round hydrating serum, it uses una enhanced form of hyaluronic acid to penetrate the skin's surface, providing deep hydration and una more elastic and luminous skin in tempo. Circular Hydration Serum's hydrating matrix, infused with algae extracts, delivers rapid and long-lasting hydration. Polyglutamic acid from fermented soy replenishes skin's moisture reserves from within.