PCA Skin Hyaluronic Acid Boosting SerumThis smoothing blend of ingredients provides deep, long lasting hydration on three levels: on the surface, deeper in the skin and by increasing the skins own hyaluronic acid production. Instant hydration and smoothing on the surface of the skin Deeper hydration and fine line reduction with the addition of hydrolyzed hyaluronic acid Proprietary blend HA Pro Complex encourages the skin to create its own hyaluronic acid, resulting in long term anti aging