Blue HA — Blue Hyaluronic Acid — is our new, next-gen hydration ingredient proprietary to Laneige!We took regular hyaluronic acid and amplified its hydration power through a unique double fermentation process with Fucoidan, a moisturizing agent derived from deep sea algae. Then we put it through a 10-step microfiltration refining process.The result? Tiny but mighty micro-sized Blue Hyaluronic Acid, which absorbs better and faster for truly deep, long lasting hydration.