Look no further for the must-have serum for deep hydration and firm skin. With the L'Oreal Paris Revitalift 1.5% pure Hyaluronic Acid Serum for deep hydration, your dry, tired skin will get a serious boost of hydration and plumping. Tested by dermatologists, this serum absorbs fast, leaving skin looking 42% more radiant after just 1 use. The serum helps boost Hyaluronic Acid production over time, containing not just 1 but 2 types of Hyaluronic Acid. Tested by dermatologists, this intensive hydrating serum deeply hydrates, re-plumps fine lines and smoothens skin. Contains the highest concentration of Hyaluronic Acid at 1.5% concentration, skin looks instantly 42% more radiant after just 1 use.