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Water Bank Blue Hyaluronic Serum

Water Bank Blue Hyaluronic Serum

Product Description

Product overview

Made in Various INTERNATIONAL

A juicy Korean serum that intensely hydrates for a smooth, supple complexion. Powered by Blue Hyaluronic Acid—fermented with deep sea algae through a 10-step microfiltration process—delivering 1/2000 micro-sized molecules for faster, deeper absorption and up to 575% plumped hydration.

Hypoallergenic Dermatologist-Tested Sensitive Skin Friendly Paraben-Free Sulfate-Free Silicone-Free Mineral Oil-Free
Pregnancy
Caution
Fungal Acne
No
Comedogenic
1/5
Size
50ml / 1.6 fl oz
Price
$45.00
Type
Hydrating Serum
Concern
Dryness, Dullness
Skin Type
All Skin Types
Real reviews · YouTube Shorts
Why it's different

Blue Hyaluronic Acid Technology

1/2000 micro-sized HA (0.5kDa) fermented with deep sea algae for faster, deeper penetration than traditional hyaluronic acid.

01

Texture & feel

SENSORY
Consistency
Soft-melting gel
Scent
Light floral
Absorption
10-15 seconds
Finish
Dewy, plump

Blue Hyaluronic Acid Technology

1/2000 micro-sized HA (0.5kDa) fermented with deep sea algae for faster, deeper penetration than traditional hyaluronic acid.

Peptide Complex

Contains firmness-boosting peptide that helps stimulate the skin's own hyaluronic acid production for visible plumping.

Green Tea Enzyme

Lactobacillus ferment lysate gently strengthens the moisture barrier while providing antioxidant protection.

575% Hydration Boost

Clinically tested to deliver 575% plumped hydration immediately after use with lasting moisture retention.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding

Contains fragrance/parfum which some experts recommend avoiding during pregnancy. No retinoids, salicylic acid, or hydroquinone. Consult your healthcare provider.

Fungal Acne (Malassezia)

Contains Polyglyceryl-3 Methylglucose Distearate and Lactobacillus Ferment Lysate which may feed malassezia yeast. Not recommended for fungal acne.

Sensitive Skin

Hypoallergenic and dermatologist-tested. Formulated for sensitive skin with soothing beta-glucan and no harsh irritants.

Low Comedogenic Rating

Water-based formula with a comedogenic rating of 1/5. Unlikely to clog pores for most skin types.

03

Ingredient breakdown

INGREDIENTS

Blue Hyaluronic Acid 0.5kDaProven

Micro-sized hyaluronic acid that is 1/2000 the size of traditional HA, fermented with deep sea algae through a 10-step microfiltration process for enhanced absorption and penetration.

  • Science: Low molecular weight HA penetrates deeper into skin layers, providing hydration from within rather than just surface moisture.
  • Benefit: Delivers 575% plumped hydration, improves skin elasticity, and reduces fine line appearance.
LANEIGE's proprietary fermentation process creates smaller molecules that absorb faster than traditional HA.

Peptide Complex 0.1-0.15%Promising

Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate - a synthetic tripeptide that helps boost the skin's natural hyaluronic acid production.

  • Science: In-vitro tests show up to 300% increase in skin's own HA synthesis.
  • Benefit: Improves skin firmness, supports structural elements like proteoglycans, and helps with skin sagging.

Lactobacillus Ferment LysatePromising

Probiotic-derived ingredient (green tea enzyme) that supports the skin's moisture barrier and provides gentle exfoliation benefits.

  • Science: Fermented ingredients can strengthen the skin barrier and support the skin microbiome.
  • Benefit: Smoother skin texture, strengthened moisture barrier, enhanced radiance.
Fermented ingredients may not be suitable for those with fungal acne (malassezia).

Beta-GlucanProven

A polysaccharide derived from yeast or oats known for its intensive skin-soothing and moisture-binding properties.

  • Science: Studies show beta-glucan has wound healing, anti-inflammatory, and antioxidant properties.
  • Benefit: Calms irritation, supports skin repair, and provides deep hydration.

SqualaneProven

A stable, plant-derived emollient that mimics the skin's natural sebum for excellent compatibility with all skin types.

  • Science: Squalane is skin-identical and non-comedogenic, providing moisture without clogging pores.
  • Benefit: Softens skin, locks in moisture, and creates a protective barrier without greasiness.

30 ingredients

Water/Aqua/Eau, Butylene Glycol, Dipropylene Glycol, Glycerin, Squalane, 1,2-Hexanediol, Ammonium Acryloyldimethyltaurate/VP Copolymer, Propanediol, Carbomer, Cetearyl Alcohol, Tromethamine, Polyglyceryl-3 Methylglucose Distearate, Dextrin, Hydrogenated Lecithin, Ethylhexylglycerin, Fragrance/Parfum, Glyceryl Stearate Citrate, Disodium EDTA, Betaine, Hydrolyzed Hyaluronic Acid, Beta-Glucan, Xylitylglucoside, Anhydroxylitol, Xylitol, Lactobacillus Ferment Lysate, Glucose, Tocopherol, Magnesium Chloride, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Undaria Pinnatifida Extract.

FREE FROM: Parabens, Formaldehydes, Formaldehyde-releasing agents, Phthalates, Mineral Oil, Retinyl Palmitate, Oxybenzone, Coal Tar, Hydroquinone, Sulfates (SLS & SLES), Triclocarban, Triclosan, Silicones, Animal Ingredients, Synthetic Pigments, Triethanolamine, Polyacrylamide, Imidazolidinyl Urea, PEG Surfactants
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Toner
3
This Serum
4
Treatments
5
Moisturizer
6
Sunscreen

Use AM & PM after cleansing and toning. Apply before heavier serums or treatments, followed by moisturizer. Always use sunscreen during the day.

05

How to use

HOW TO USE
1

Prep Your Skin

After cleansing and toning, ensure skin is slightly damp. The serum works best on hydrated skin to lock in moisture.

2

Dispense & Apply

Pump 2-3 drops onto fingertips or palm. Apply evenly across face, spreading from the center outward.

3

Pat & Press

Gently pat and press the serum into skin using both palms on cheeks, forehead, and chin to enhance absorption.

4

Layer if Needed

For extra hydration, apply a second layer before it fully absorbs. Follow with moisturizer to seal in benefits.

06

Who is it for?

WHO

Perfect for you if:

  • You have dehydrated, dull, or tired-looking skin
  • You want to achieve the K-beauty "glass skin" look
  • You need lightweight hydration that layers well
  • You have normal, dry, or combination skin
  • You want firming and plumping benefits
  • You prefer hypoallergenic, dermatologist-tested products

Consider alternatives if:

  • You have fungal acne (malassezia) - contains ferments
  • You're extremely sensitive to fragrances
  • You're strictly avoiding all fragranced products during pregnancy
  • You prefer fragrance-free formulas
  • You need a budget-friendly option (premium price point)
07

Skin type compatibility

SKIN TYPES
Dry Skin
Excellent

Intensely hydrating formula with multi-weight HA and squalane delivers lasting moisture for parched skin.

Combination Skin
Excellent

Lightweight gel texture hydrates dry areas without overwhelming oily zones. Balances well across face.

Oily Skin
Good

Water-based formula absorbs quickly without added greasiness. Use sparingly and layer lightly.

Sensitive Skin
Good

Hypoallergenic and dermatologist-tested with soothing beta-glucan. Contains fragrance—patch test first.

Acne-Prone Skin
Moderate

Low comedogenic rating (1/5), but contains ferments that may trigger fungal acne. Traditional acne should be fine.

08

Results timeline

WEEK 6+
Immediately

Instant Hydration & Plumping

Skin feels immediately hydrated, plump, and bouncy. Clinical tests show 575% increased hydration right after application.

95% noticed instant moisture
Week 1-2

Improved Skin Texture

Skin begins to feel consistently smoother and softer. Dewy, glass-skin glow becomes more noticeable throughout the day.

80% noticed smoother skin
Week 3-4

Visible Firmness & Radiance

Skin appears more supple and firm. Dullness reduced, overall complexion looks healthier and more radiant.

75% noticed improved firmness
Week 6+

Strengthened Moisture Barrier

Long-term barrier support from consistent use. Skin retains moisture better and appears more resilient and plump.

70% noticed lasting improvement
09

Ratings by platform

3K+ REVIEWS
Sephora
4.4
Rating
850+
Reviews
Main complaint: Some find the fragrance too strong for sensitive skin
Amazon
4.3
Rating
600+
Reviews
Main complaint: Price point is high compared to drugstore alternatives
Ulta
4.5
Rating
400+
Reviews
Main complaint: 50ml bottle runs out quickly with daily use
LANEIGE Official
4.7
Rating
1,200+
Reviews
Main complaint: Pump dispenser can be slightly awkward to use
10

Pros & cons

BALANCED

Praised

  • Delivers instant, noticeable hydration and plumping
  • Lightweight gel texture absorbs quickly without stickiness
  • Creates beautiful dewy "glass skin" finish
  • Hypoallergenic and dermatologist-tested
  • Works well under makeup as a hydrating primer
  • Elegant packaging and luxurious feel
  • Layers well with other skincare products

Criticized

  • Contains fragrance (not ideal for fragrance-sensitive users)
  • Premium price point ($45 for 50ml)
  • Not fungal acne safe due to fermented ingredients
  • Small bottle size runs out quickly
  • Pump dispenser can be awkward
  • Some find it not hydrating enough for very dry skin alone
11

Budget-friendly alternatives (dupes)

DUPES
85% Match
Hyaluronic Acid 2% + B5 Serum
$8.90
Budget Pick

Similar hydrating concept with 2% HA and vitamin B5. Simpler formula without peptides or ferments. Thicker texture, may feel slightly tacky. Fragrance-free and fungal acne safe.

90% Match
Dive-in Low-Molecular Hyaluronic Acid Serum
$20.00
Similar Pick

Korean serum with 5D multi-molecular HA complex for multi-layer hydration. Fragrance-free, lighter texture. Contains panthenol and allantoin for soothing. Fungal acne safe.

75% Match
Minéral 89 Hyaluronic Acid Booster
$34.00
Similar Pick

French pharmacy option with HA and Vichy mineralizing water. Fragrance-free, lightweight gel texture. No ferments or peptides. Good for sensitive skin and fungal acne safe.

70% Match
Hydro Boost Hyaluronic Acid Serum
$20.00
Budget Pick

Drugstore option with HA, glycerin, and trehalose. More accessible price point. Contains fragrance. Lightweight water-gel formula with good layering capabilities.

12

Comparison with competitors

SIDE-BY-SIDE
Dive-in Low-Molecular Hyaluronic Acid Serum
Key Ingredient 5D Multi-Molecular HA
Size 50ml
Fragrance No
Fungal Acne Safe Yes
Best For Sensitive, oily, FA-prone skin
Pycnogenol 5%
Key Ingredient 2% HA + Vitamin B5
Size 30ml
Fragrance No
Fungal Acne Safe Yes
Best For Budget-conscious, minimalist
Minéral 89 Hyaluronic Acid Booster
Key Ingredient HA + Vichy Mineral Water
Size 50ml
Fragrance No
Fungal Acne Safe Yes
Best For Sensitive, barrier-damaged skin
13

Storage & shelf life

12 MONTHS
Period After Opening (PAO)

12 months after opening

Storage

Store in a cool, dry place away from direct sunlight. Keep tightly closed when not in use.

Packaging

Pump dispenser bottle with protective cap. Hygienic design prevents contamination.

Travel Friendly

Yes - 50ml is under the 100ml TSA liquid limit. Compact size fits easily in carry-on toiletry bag.

13

Frequently asked questions

FAQ

This serum does not contain any of the major ingredients to avoid during pregnancy (retinoids, salicylic acid, hydroquinone, chemical sunscreens). However, it does contain fragrance/parfum, which some healthcare providers recommend avoiding as a precaution. The formula is otherwise gentle and hypoallergenic. Consult your healthcare provider if you're concerned about using fragranced products during pregnancy or breastfeeding.

No, this serum is NOT considered fungal acne safe. It contains Lactobacillus Ferment Lysate (a fermented ingredient) and Polyglyceryl-3 Methylglucose Distearate, both of which may feed the malassezia yeast that causes fungal acne. If you have fungal acne, consider alternatives like Torriden DIVE-IN Serum, The Ordinary HA 2% + B5, or Vichy Minéral 89, which are all fungal acne safe.

Yes! Hyaluronic acid serums are generally compatible with most active ingredients. Apply the Water Bank serum after cleansing and toning, before or after water-based actives like vitamin C (when used in the morning) or retinol (in the evening). It can help buffer potential irritation from acids or retinol by providing a hydration boost. For AHAs/BHAs, apply the serum after your exfoliating step to soothe and hydrate.

This serum is formulated for all skin types but works especially well for dry, dehydrated, dull, and combination skin. The lightweight gel texture makes it suitable for oily skin when used sparingly. It's hypoallergenic and dermatologist-tested, making it good for sensitive skin, though patch testing is recommended if you're fragrance-sensitive. Not recommended for those with fungal acne.

You'll notice instant hydration and plumping immediately after application (clinical tests show 575% increased hydration). Improved skin texture and consistent dewiness typically appear within 1-2 weeks of daily use. Visible firmness improvements and strengthened moisture barrier benefits develop over 4-6 weeks of consistent morning and evening use.

Apply this serum as step 3 in your routine: after cleansing and toning, before heavier treatments, moisturizer, and sunscreen. The general rule is to apply products from thinnest to thickest consistency. Use it on slightly damp skin for best absorption. It can be used both morning and evening. In the AM, always follow with sunscreen.

This serum has a low comedogenic rating of 1/5. It's primarily water-based with non-comedogenic ingredients like glycerin, squalane, and hyaluronic acid. It's unlikely to clog pores for most people. However, everyone's skin is different—if you're prone to breakouts, patch test first and introduce gradually into your routine.

The serum has a PAO (Period After Opening) of 12 months. Store it in a cool, dry place away from direct sunlight and heat. Keep the cap tightly closed when not in use. The 50ml bottle typically lasts 2-3 months with twice-daily use (2-3 pumps per application).

— Skincarisma verdict
4.4 / 5 ★★★★☆

Verdict: LANEIGE Water Bank Blue Hyaluronic Serum is a premium K-beauty hydrating serum that delivers on its promise of instant, deep hydration and visible plumping. The innovative Blue Hyaluronic Acid technology with micro-sized molecules provides faster absorption than traditional HA serums. It's ideal for achieving that coveted glass-skin glow. However, the fragrance and fermented ingredients make it unsuitable for those with fragrance sensitivities or fungal acne. At $45 for 50ml, it's a premium investment—excellent for those who prioritize texture, efficacy, and the K-beauty experience, but budget-conscious shoppers may prefer alternatives like Torriden DIVE-IN or The Ordinary HA 2% + B5.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

anti-aging Anti-Aging from 3 ingredient(s):
Hydrolyzed Hyaluronic Acid Beta-Glucan Tocopherol
brightening Brightening from 2 ingredient(s):
Glycerin Hydrolyzed Hyaluronic Acid
wound Promotes Wound Healing from 3 ingredient(s):
Glycerin Hydrolyzed Hyaluronic Acid Tocopherol
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
4
oily-skin Oily/Acne-Prone Skin
sensitive-skin Sensitive Skin
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
73% 26%

Product ingredient list

Showing first 5 of 30 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
1 A
Dipropylene Glycol
Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling
2 A
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
brightening Brightening
Promotes Wound Healing
Hydrating
1 A
Squalane
Skin Conditioning, Emollient, Hair Conditioning, Refatting
Hydrating
VIEW ALL INGREDIENTS