Teosyal PureSense Redensity I uses natural and highly concentrated non cross linked hyaluronic acid to improve the skin's hydration, firmness and viscoelastic properties.It is designed for the prevention of wrinkles and is injected into the dermis of the face, neck and neckline. In addition, it has a superficial injection depth, is biodegradable and contains 0.3% lidocaine for patient comfort.