PHYTORx Hyaluronic Acid + Vitamin E Booster Serum is an intensive hydrating booster serum that helps moisture penetrate the deepest layers of the skin & locks in there to plump it up & smoothen fine lines instantly. With its skinphilic molecular size, Hyaluronic Acid provides ample hydration to the deepest layers of the skin to build their resiliency, suppleness, bounce & moisture. Vitamin E helps protect skin from sun damage, inflammation and repairs skin from within.