Representing eye-widening value for those who're addicted to this precious, plumping elixir, Dr. Barbara Sturm's bestselling Hyaluronic Acid now comes in a supersized vial with a fabulous saving (over £130!). Supercharged with highly concentrated long- and short-chain hyaluronic molecules, this serum provides intensive hydration. The long-chain hyaluronic molecules have an almost instant effect, providing immediate hydration to the surface layers of the skin to make it tangibly firmer, ref