LANEIGE Water Bank Aqua Facial Serum — AHA/BHA/PHA exfoliating & hydrating serum with hyaluronic acid and ceramides

LANEIGE Water Bank Aqua Facial Serum is a dual-action K‑Beauty daily serum that gently exfoliates with AHA, BHA, and PHA while delivering deep hydration from hyaluronic acid, polyglutamic acid, and ceramides for smoother, plumper, more radiant skin.

Designed around the Korean glass-skin ritual, this lightweight serum combines chemical exfoliants and moisture-binding ingredients so you get both refined texture and lasting hydration in a single step. The formula targets surface flakes and dullness while reinforcing the skin’s barrier to lock in moisture and a healthy-looking glow. It’s presented for daily use and formulated to suit a range of skin types, including sensitive skin.

How does it exfoliate without irritating skin?

The serum uses a trio of acids—AHA for surface renewal, BHA for pore clearance, and PHA for gentle, skin-friendly exfoliation—to refine texture without harsh scrubbing. These actives work at low concentrations and are balanced with humectants and barrier-supporting ceramides to minimize irritation. Patch testing is still recommended for very reactive skin.

• Combined AHA/BHA/PHA system for multi-level exfoliation
• Low-irritation PHA to soothe while resurfacing
• Formulated with hydrating and barrier ingredients to reduce sensitivity risk

What hydration benefits will I notice and how fast?

Hydration is delivered immediately by hyaluronic acid and polyglutamic acid, which attract and hold water in the skin for an instant plumping effect. Ceramides help seal moisture into the skin, making the hydration feel longer lasting rather than fleeting. Users report noticeable softening of dry patches after the first application, with improved overall glow with continued use.

• Hyaluronic acid and polyglutamic acid for immediate moisture boost
• Ceramides to reinforce the skin barrier and retain hydration
• Formulated to reduce flakiness and increase visible luminosity over time

Can I use this serum in my existing routine?

This lightweight serum layers well under creams, oils, and sunscreen; apply after cleansing and toning. Because it contains exfoliating acids, avoid stacking multiple acid treatments the same day and introduce the serum gradually if you use retinoids or other active exfoliants. Follow with SPF during daytime to protect newly revealed skin.

• Use after cleansing/toning and before moisturizer or sunscreen
• Limit concurrent use with other powerful exfoliants or strong retinoids
• Recommended gradual introduction for sensitive skin types

Who is this for? This product is suited for anyone seeking smoother texture and long-lasting hydration: dry or combination skin that needs plumping moisture, those with visible flakiness or dullness wanting gentle chemical exfoliation, and people after a lightweight serum that layers easily under other skincare steps. It’s formulated for broad skin-type compatibility and dermatologically tested, making it a practical addition to daily K‑Beauty routines aimed at achieving a soft, glassy finish.