CosRX Hyaluronic Acid Essence

At 4,000ppm, it contains a powerful concentration of sodium hyaluronate?a.k.a. the sodium derived from hyaluronic acid with particles small enough to actually penetrate your pores. In this essence, it?s paired with sea buckthorn water to soothe, brighten, and plump up skin with long-lasting moisture. With a refreshing, non-sticky formula that absorbs fast, it feels comfortable on skin and leaves behind a silky-soft finish.