Quick Summary:
Date Tested: 5/19/2025
In this One Thing Cica B5 Sun Cream SPF 50+ PA++++ sunscreen review, I find a formulation which is poo poo. Thanks go to Ruth for the sunscreen sample!
Today while I was having my morning bathroom dialogue with my wife, I realized I only really like writing posts for either very terrible sunscreen, or mind-blowingly amazing sunscreen. Everything else is just like, “oh ok great mmmmhhhmmmmmm.” I really like the emotional hit of being extremely surprised by how badly a sunscreen performs, or just wowed at the amazing protection (and by extension, the VALUE) a sunscreen provides. Testing bad sunscreen gives me a hit of dopamine that makes me happy. Its probably why I like metal detecting too – I don’t care what I find, as long as I find something that I wasn’t expecting (which is all the time). Keep in mind though, my feelings about a sunscreen affects neither directly, nor indirectly, the results that I post on this site. Results are entirely based on how the sunscreen performs in the sunscreen machine.
The One Thing Cica B5 Sun Cream SPF 50+ PA++++ is a chemical sunscreen formula which contains Ethylhexyl Triazone, and Diethylamino Hydroxybenzoyl Hexyl Benzoate.
The One Thing Cica B5 Sun Cream SPF 50+ PA++++ reduced 58.53% of irradiated UVA, 55.13% UVB, and 58.34% of total UVI. Poo Poo.
One Thing Cica B5 Sun Cream SPF 50+ PA++++ ingredients
Active ingredients: Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate
Inactive Ingredients: Water, Dibutyl Adipate, Propanediol, Glycerin, 1,2-Hexanediol, Caprylyl Methicone, Pentylene Glycol, Vp/Eicosene Copolymer, Decyl Glucoside, Sodium Polyacryloyldimethyl Taurate, Dimethiconol, Trisiloxane, Hydroxypropyl Methylcellulose Stearoxy Ether, Polyacrylate Crosspolymer-6, Ethylhexylglycerin, Sodium Stearoyl Glutamate, Sodium Polyacrylate, Citric Acid, Xanthan Gum, Polyether-1, Madecassoside, Betaine, Panthenol, Centella Asiatica Leaf Extract, Tocopherol, Asiaticoside, Madecassic Acid, Methylpropanediol, Asiatic Acid, Butylene Glycol, Hydrogenated Lecithin, Ficus Carica (Fig) Fruit Extract, Centella Asiatica Extract, Ceramide NP, Centella Asiatica Root Extract
Manufacturers Website: www.onething.kr
One Thing Cica B5 Sun Cream SPF 50+ PA++++ sunscreen characteristics at a glance:
- A hydrating chemical sunscreen that protects skin from UV damage with SPF50+ PA++++ while cooling and calming irritated skin.
- Features 5 types of Centella Asiatica ingredients and Panthenol to soothe and cool skin irritated by heat.
- Reef safe formula completed skin irritation and non-comedogenic tests.
- Creamy texture that leaves a light and fresh feeling on skin without stickiness.
- Viscosity is medium-low.
Prepared slide BEFORE testing
The One Thing Cica B5 Sun Cream SPF 50+ PA++++ sunscreen distributed very unevenly despite still being a medium-low viscosity.
On spot-testing on the thicker layered portions of the slide sample, the UV protection went up to 90%, however I am sure most people wouldn’t want to leave such a thick white layer of sunscreen on their face.
One Thing Cica B5 Sun Cream SPF 50+ PA++++ sunscreen 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 | 75.4 | 76.69 | |
| UVA | 42520.5 | 17634 | 58.53% |
| UVB | 2318.5 | 1040.3 | 55.13% |
| UVI | 25.1 | 10.5 | 58.34% |
Want to know more about how I test sunscreen? Head here to read about the details.
Testing notes:
I really liked the product packaging, unfortunately it was not enough for me to like the results.
Not Recommended.
Want to try the One Thing Cica B5 Sun Cream SPF 50+ PA++++ sunscreen?
Not recommended
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