The Ordinary EUK 134 0.1% | Unbiased Skincare Efficacy Review by AI

Review

Does The Ordinary EUK 134 0.1% Work?

According to CreamScan AI's analysis of the ingredient list, here’s what The Ordinary EUK 134 0.1% has to offer:

Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.

Key Benefits of The Ordinary EUK 134 0.1%

These are the key benefits you can expect from using The Ordinary EUK 134 0.1%:

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, The Ordinary EUK 134 0.1% is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, entirely due to the high content of Propanediol (est. ≈99.9%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

Tip: Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

A Humectant Boost for Any Skincare Routine

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

Please note that this is not a complete list of benefits. We are in the process of enhancing our AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: The Ordinary EUK 134 0.1%

CreamScan AI identified a few things to consider before adding The Ordinary EUK 134 0.1% to your skincare routine:

If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using The Ordinary EUK 134 0.1% as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of The Ordinary EUK 134 0.1%

Here’s an overview of the pros and cons of The Ordinary EUK 134 0.1% to help you decide if it’s the right choice for your skincare routine:

Pros:

When used alone: Provides humectant-rich moisturizing ideal for oily skin
As part of a routine: A humectant moisturizing boost, beneficial for any skin type
Lightweight texture

Cons:

Needs to be paired with occlusives to seal in humectants if used as a standalone moisturizer

Est. % The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more	Ingredient	Origin	Functions
99.9	Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness. Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.	Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Biotech, The biotech origin of the ingredient implies that it was made in a lab using cultured microorganisms (bacteria or fungi) and a substrate (e.g. through the fermentation process), and then extracted and/or purified. Biotech, The biotech origin of the ingredient implies that it was made in a lab using cultured microorganisms (bacteria or fungi) and a substrate (e.g. through the fermentation process), and then extracted and/or purified. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.	Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Formula helper Solvent – a liquid that dissolves other ingredients. Viscosity controlling – changes the thickness of a product. Formula helper Solvent – a liquid that dissolves other ingredients. Viscosity controlling – changes the thickness of a product.
0.1 Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website. Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website.	Ethylbisiminomethylguaiacol Manganese Chloride Ethylbisiminomethylguaiacol Manganese Chloride	Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.	Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging.

99.9

Propanediol

Function:

Origin:

0.1

Ethylbisiminomethylguaiacol Manganese Chloride

Function:

Origin:

Ratings

Propanediol

99.9

Benchmark

None

Benchmark

Moisturizing rating

5.0

Ingredient		Est. %	Benchmark Sciense based points to which we compare all humectants and all occlusives in a product to calculate its Humectancy and Occlusivity. Sciense based points to which we compare all humectants and all occlusives in a product to calculate its Humectancy and Occlusivity.	Raiting
Humectancy	All humectants	99.9	10	10.0
	Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness. Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.	99.9
Occlusivity	All occlusives	0.0	20	0.0
	None
Moisturizing rating				5.0

Ingredient	Est. %	Benchmark According to various studies, a formula made up of 10% humectants will significantly increase skin hydration. Some studies also suggest that any further icrease in the consentration of humectants does not translate inty any more hydration and may even be dehydrating. To achieve maximum Humectancy, the product should have humectants with a total score of 10 and more. According to various studies, a formula made up of 10% humectants will significantly increase skin hydration. Some studies also suggest that any further icrease in the consentration of humectants does not translate inty any more hydration and may even be dehydrating. To achieve maximum Humectancy, the product should have humectants with a total score of 10 and more.	Humectancy
Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness. Propanediol An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.	99.9
All humectants	99.9	10	10

Propanediol

99.9

Benchmark

Ingredient	Est. %	Benchmark The most occlusive product possible is 100% petrolatum (hello Vaseline Jelly). According to studies, hovewer, even 10% petrolatum can achieve almost the same mosturizing effect. The occlusive properties of petrolatum are at least twice as superior as other occlusive ingredients. This is why, in order to match the moisturizing efficacy of 10% petrolatum, a product needs to contain at least 20% of other occlusives. Our benchmark for maximum Occlusivity is 20 (and the petrolatum score is always doubled). The most occlusive product possible is 100% petrolatum (hello Vaseline Jelly). According to studies, hovewer, even 10% petrolatum can achieve almost the same mosturizing effect. The occlusive properties of petrolatum are at least twice as superior as other occlusive ingredients. This is why, in order to match the moisturizing efficacy of 10% petrolatum, a product needs to contain at least 20% of other occlusives. Our benchmark for maximum Occlusivity is 20 (and the petrolatum score is always doubled).	Occlusivity
None
All occlusives	0.0	20	0.0

None

Benchmark

Ingredient	Ingredient anti-wrinkle power Shows on a scale of 0-10 how effective an ingredient is at reducing wrinkles. Both the Reported Efficacy of the ingredient and the Strength of Evidence are taken into account. Shows on a scale of 0-10 how effective an ingredient is at reducing wrinkles. Both the Reported Efficacy of the ingredient and the Strength of Evidence are taken into account.	when present at, %	in this formula est. %	Rating
None
Total				0

None

Anti-wrinkle rating

Ingredient	Est. %	Benchmark It differs from one antioxidant ingredient to another, but, on average, the research suggests that topically applied antioxidants are effective in consentrations of 3% or above. Any product with a total antioxidant score of 3 or more is considered to be reach in antioxidants. It differs from one antioxidant ingredient to another, but, on average, the research suggests that topically applied antioxidants are effective in consentrations of 3% or above. Any product with a total antioxidant score of 3 or more is considered to be reach in antioxidants.	Rich in Antioxidants
Ethylbisiminomethylguaiacol Manganese Chloride Ethylbisiminomethylguaiacol Manganese Chloride	0.1
All antioxidants	0.1	3	No

Ethylbisiminomethylguaiacol Manganese Chloride

0.1

Benchmark

Ingredient	Est. %	Benchmark The effective concentration of soothing ingredients varies, but we consider a product rich in soothing ingredients if their estimated concentration is equal to or higher than 5%. The effective concentration of soothing ingredients varies, but we consider a product rich in soothing ingredients if their estimated concentration is equal to or higher than 5%.	Rich in Soothing
None
All soothing	0	5	No

None

Benchmark

Ingredients explained

Propanediol
Est. %	99.9
Function	Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Solvent, Solvent – a liquid that dissolves other ingredients. Solvent, Solvent – a liquid that dissolves other ingredients. Viscosity Controlling Viscosity controlling – changes the thickness of a product. Viscosity Controlling Viscosity controlling – changes the thickness of a product.
Origin	Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Biotech, The biotech origin of the ingredient implies that it was made in a lab using cultured microorganisms (bacteria or fungi) and a substrate (e.g. through the fermentation process), and then extracted and/or purified. Biotech, The biotech origin of the ingredient implies that it was made in a lab using cultured microorganisms (bacteria or fungi) and a substrate (e.g. through the fermentation process), and then extracted and/or purified. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.

An excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.

Ethylbisiminomethylguaiacol Manganese Chloride
Est. %	0.1
Function	Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging.
Origin	Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.