La Roche-Posay Hydraphase HA Light Moisturiser For Sensitive Skin is a unique association of La Roche-Posay thermal spring water known for its natural soothing properties and pure hyaluronic acid from green technology: biofermentation process using plant sugars. This light face cream is formulated to moisturize and soothe dehydrated skin. Apply this hyaluronic acid face cream for dry skin daily for 72Hr hydration and an immediate plump for radiant-looking skin. Naturally Derived Hyaluronic Acid (HA) from Green Technology, is a polysaccharide (carbohydrate polymer) found naturally within the skin. Hyaluronic acid acts like a sponge in that it can attract and retain water, making it a great hydrating ingredient for all skin types. When used in a formula, HA is an effective humectant that can hold a large amount of water to help maintain the skin's moisture. La Roche-Posay Thermal Spring Water is a soothing water sourced in the town of La Roche-Posay in France and a core ingredient in most of La Roche-Posay products. It contains a unique combination of minerals, trace elements, and a high concentration of selenium, a natural antioxidant. La Roche-Posay Hydraphase HA Light Moisturiser infuses the skin with moisture for 72 hours and immediate plump for a reinforced and radiant skin.