Laneige Water Bank Blue Hyaluronic Serum 50ml

A serum that fits in 50 ml — and you quickly understand why the bottle empties. Its translucent texture delivers hydration that settles into the skin without overwhelming it, without leaving any film. There's something watery, almost instant, about the way it disappears. For skin that feels tight, that's thirsty, that needs a simple and effective routine step.

Texture and ingredients — At the heart of the formula, Laneige's Blue HA: a hyaluronic acid broken down into micro-particles through double fermentation with Fucoidan — a moisturising agent derived from deep-sea algae — then refined through ten microfiltration steps. This reduced size allows it to absorb faster and reach the deeper layers of the epidermis. The serum also includes beta-glucan to support the skin barrier, squalane to nourish without clogging, a peptide (tetradecyl aminobutyroylvalylaminobutyric acid urea trifluoroacetate) linked to visible firmness, and an Undaria pinnatifida extract — a brown algae — to reinforce the moisturising function. Dermatologically tested formula, declared hypoallergenic and suitable for sensitive skin.

In your routine — Apply the serum after cleansing and toner, in an even layer across the entire face. Its texture melts on contact without needing a prolonged massage — a few seconds is all it takes to absorb. It primes the skin for the moisturiser that follows, or can work as a standalone hydration step for those who prefer to keep things light. A 50 ml bottle provides around one to two months of daily use, depending on how much you apply.

• Blue HA: hyaluronic acid micro-filtered in 10 steps, derived from double fermentation with Fucoidan (deep-sea algae) — accelerated absorption into deeper layers.
• Beta-glucan: strengthens the skin's moisture barrier to lock in hydration.
• Squalane: a lightweight lipid that nourishes the skin without greasiness or residue.
• Undaria pinnatifida extract (brown algae): supports lasting hydration over time.
• 50 ml size: designed for daily use over one to two months — store away from heat and direct light to preserve the efficacy of the fermented ingredients.