Summary: Blue Hyaluronic Acid is a proprietary, micro-sized ingredient developed by Laneige for deeper and faster skin absorption. It addresses the common issue of regular hyaluronic acid molecules being too large to penetrate beyond the skin's surface, thus providing more effective, internal hydration.

Key Characteristics Micro-Sized: Laneige's Blue HA is described as being 1/2000th the size of conventional HA, allowing it to absorb more effectively. Advanced Fermentation: The ingredient is created through a 10-step microfiltration and double-fermentation process using fucoidan from deep-sea algae. Rapid Absorption: Due to its low molecular weight, it is designed to absorb quickly without a heavy or sticky residue. Featured in Water Bank: This is the key technology in Laneige's "Water Bank Blue Hyaluronic" collection.

Significance in Skincare While traditional hyaluronic acid is an excellent humectant that draws moisture to the skin's surface, its large molecular size limits its effect to superficial plumping. By creating a 'micro-sized' version, Laneige's Blue Hyaluronic Acid technology aims to deliver hydration to deeper layers of the skin, promoting improved moisture retention and strengthening the skin's moisture barrier from within.

For deep, lasting hydration that goes beyond the surface, look for products with 'Blue Hyaluronic Acid', as its micro-particle size is engineered for superior skin penetration.