Quick Summary:
Date Tested: 8/10/2026
In this Laneige Water Bank UV Barrier SPF 50 sunscreen lotion review, I test a terrible SPF 50 sunscreen. Thanks again go to April for this sample!
The Laneige Water Bank UV Barrier SPF 50 is a chemical sunscreen formula which contains Drometrizole Trisiloxane, Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate, and Terephthalylidene Dicamphor Sulfonic Acid.
The Laneige Water Bank UV Barrier SPF 50 reduced 42.14% of irradiated UVA, 36.37% UVB, and 41.76% of total UVI. Not very good. Cry.
Laneige Water Bank UV Barrier SPF 50 ingredients
Active ingredients: Drometrizole Trisiloxane, Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Terephthalylidene Dicamphor Sulfonic Acid
Inactive Ingredients: Water/Aqua/Eau, Diethylhexyl Succinate, Propanediol, 1,2-Hexanediol, Behenyl Alcohol, Methyl Trimethicone, Tromethamine, Sodium Polyacryloyldimethyl Taurate, Butylene Glycol, Polyacrylate Crosspolymer-6, C20-24 Alkyl Dimethicone, Arachidyl Alcohol, Caprylyl Glycol, Sodium Methyl Stearoyl Taurate, Ethylhexylglycerin, Arachidyl Glucoside, Fragrance/Parfum, Allantoin, Hydrolyzed Hyaluronic Acid, Sodium Metaphosphate, Bisabolol, Rubus Fruticosus (Blackberry) Fruit Extract, Fragaria Vesca (Strawberry) Leaf Extract, Tocopherol, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hyaluronic Acid, Sodium Acetylated Hyaluronate
Manufacturers Website: int.laneige.com
Laneige Water Bank UV Barrier SPF 50 characteristics at a glance:
- Invisible Hydrating Sunscreen with skincare benefits for daily use
- SPF50+ PA++++
- As moisturizing as a moisturizer, this watery, non-sticky and lightweight ‘barrier-shield sunscreen’
- Helps protect and enhance the skin’s moisture barrier against UV and other external stimuli-induced damage
- Fuelled by 30 years of Water Bank’s skin barrier science
- Viscosity is Very low
Prepared slide BEFORE testing
The Laneige Water Bank UV Barrier SPF 50 distributed unevenly on the prepared slide sample, and had major thinning towards the center of the slide sample. This is likely due to the low-viscosity of the formula.
Laneige Water Bank UV Barrier SPF 50 UV blocking test results
Ultraviolet light quick reference:
UVA: The Ultraviolet wavelength from 315nm – 400nm. The “Aging UV light” – Causes wrinkles.
UVB: The Ultraviolet wavelength from 280nm – 315nm. The “Bad UV light” – Causes skin cancer.
UVI: The global sun UV index. The more a sunscreen can reduce the level of UVI, the better.
UV test results:
Ultraviolet sensor readings:
| Before Sunscreen | After Sunscreen | % UV Blocked | |
|---|---|---|---|
| TEMP | 79.35 | 79.6425 | |
| UVA | 34,624.5 | 20,034 | 42.14% |
| UVB | 2,127 | 1,353.5 | 36.37% |
| UVI | 20.565 | 11.9775 | 41.76% |
Want to know more about how I test sunscreen? Head here to read about the details.
Testing notes:
A terrible sunscreen which provides very poor UV blocking protection!
Want to try the Laneige Water Bank UV Barrier SPF 50?
Not Recommended
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A link to purchase this sunscreen: