La Roche-Posay Hydraphase HA Rich Powered by Green Technology. It moisturizes your skin for 72h. Rich and creamy texture. Skin is instantly radiant and plumped. The formula 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. Tolerance tested under dermatological control.