Deep hydration for dry skin is about two things: getting water into the skin and keeping it there. This serum does both at once. Powered by Hyaluronic Acid and Squalane, it works in 7 targeted ways: delivers deep hydration, wears without any heavy feeling, plumps fine lines, locks in moisture, repairs a dry barrier, boosts luminosity, prevents transepidermal water loss, and restores suppleness over time. Hyaluronic Acid holds up to a thousand times its weight in water. Squalane seals it in by mimicking the skin's own lipid layer. Used daily, dry skin stops feeling like it needs a drink three hours after you moisturise.