Filled with hero-ingredient hyaluronic acid that is a powerful humectant (holds moisture) this lightweight, silky, and fast-absorbing serum is ideal for all skin types, especially dry types. this isn't your ordinary serum -- this is an ampoule. this unique formula offers two distinct benefits: skin-benefiting ingredients sink deep into skin, and while the ampoule forms a protective layer on the surface of skin locking everything in. the result is intensive hydration, plumping of skin, and a glow that radiates from deep within.