Water Bank Aqua Facial Serum 30ml

Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.

Full INCI (44): Water, Betaine, Gluconolactone, Glycerin, Butylene Glycol, Dipropylene Glycol, Sodium Lactate, Glycereth-26, Niacinamide, Dimethyl Isosorbide, Tromethamine, Lactobacillus Ferment Lysate, 1,2-Hexanediol, Caffeine, Diethoxyethyl Succinate, Vaccinium Myrtillus (bilberry) Fruit Extract, Allantoin, Dextrin, Propanediol, Pectin, Saccharum Officinarum (sugarcane) Extract, Salicylic Acid, Sodium Gluconate, Sphingomonas Ferment Extract, Lactic Acid, Glycolic Acid, Ethylhexylglycerin, Xanthan Gum, Citrus Sinensis (orange) Extract, Citrus Limon (lemon) Extract, Cyclodextrin, Acrylates/Stearyl Methacrylate Copolymer, Hydrolyzed Hyaluronic Acid, Tremella Fuciformis Sporocarp Extract, Hyaluronic Acid, Acer Saccharum (sugar Maple) Extract, Protease, Calcium Chloride, Ceramide Np, Glutathione, Polyglutamic Acid, Sodium Hyaluronate Crosspolymer-6, Glyceryl Caprylate, Hydrolyzed Dna

Ingredient list read from laneige.com on 30 August 2026.

38 of 44 explained

Water solvent

Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.

Betaine humectant

Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.

Gluconolactone exfoliant

Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.

Glycerin humectant

Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.

Butylene Glycol humectant

Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.

Dipropylene Glycol humectant

Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.

Sodium Lactate humectant

Sodium Lactate is the salt of lactic acid and one of the components of skin's own natural moisturising factor. At the levels used here it is a humectant and buffer rather than an exfoliant.

Glycereth-26 humectant

Glycereth-26 is a modified glycerin that hydrates with far less stickiness than glycerin itself. It is a common way to load water into a formula that has to stay light.

Niacinamide active

Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.

Dimethyl Isosorbide solvent

Dimethyl Isosorbide is a solvent used to dissolve actives that water and oil both reject, and to carry them evenly through the outer layer of skin. It appears in vitamin C and retinoid formulas for exactly that reason.

Tromethamine pH adjuster

Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.

Lactobacillus Ferment Lysate ferment

Lactobacillus Ferment Lysate is the ferment with the bacterial cells broken open, so their contents are in the formula too. It is a conditioning ferment used in barrier-focused products.

Market

Korean market, the version sold in Korea

Made in

Republic of Korea

Volume

30 ml

Category

Serum & Ampoule

Ships from

California or Korea

Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.

We split shipments free, so one out-of-stock item never holds up the rest of your order.

We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.

Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.

Every order ships from California or direct from Korea, and returns run for 30 days.

Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.