SkinCeuticals Simply Clean Gel Versus Kiehl's Ultra Facial Cleanser
Updated on October 17, 2023
Overview
What they are
These products are both reef safe face cleansers. They have a total of 8 ingredients in common
Suited For
They're both likely to be good for dry skin and brightening skin
Free From
They both do not contain any harsh alcohols, common allergens, parabens or silicones
What's Inside
They both contain oils
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
SkinCeuticals Simply Clean Gel 17 ingredients
Kiehl's Ultra Facial Cleanser 27 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
SkinCeuticals Simply Clean Gel 17 ingredients
Kiehl's Ultra Facial Cleanser 27 ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium Cocoyl Glycinate
CleansingCoco-Betaine
CleansingGlycerin
Humectant
Acrylates Copolymer
Pentylene Glycol
Skin ConditioningSodium Chloride
Masking
Propylene Glycol
Humectant
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingPhenoxyethanol
Preservative
Sodium Hydroxide
BufferingDisodium EDTA
Citrus Aurantium Dulcis Oil
Masking
Limonene
Perfuming
Aloe Barbadensis Extract
Skin ConditioningChamomilla Recutita Extract
Skin Conditioning
Citric Acid
Buffering
Water, Sodium Cocoyl Glycinate, Coco-Betaine, Glycerin, Acrylates Copolymer, Pentylene Glycol, Sodium Chloride, Propylene Glycol, Hydroxyethylpiperazine Ethane Sulfonic Acid, Phenoxyethanol, Sodium Hydroxide, Disodium EDTA, Citrus Aurantium Dulcis Oil, Limonene, Aloe Barbadensis Extract, Chamomilla Recutita Extract, Citric Acid
Water
Skin ConditioningSodium Laureth Sulfate
Cleansing
Decyl Glucoside
CleansingGlycerin
Humectant
Cocamidopropyl Betaine
Cleansing
Disodium Cocoamphodiacetate
CleansingAcrylates Copolymer
Lauryl Glucoside
CleansingPEG-200 Hydrogenated Glyceryl Palmate
Cleansing
Triethanolamine
BufferingSodium Chloride
Masking
Pentylene Glycol
Skin ConditioningPhenoxyethanol
Preservative
PEG-7 Glyceryl Cocoate
Emulsifying
Sodium Hydroxide
BufferingCitric Acid
Buffering
Hexylene Glycol
EmulsifyingBehenyl Alcohol
Emollient
Distearyl Ether
Skin ConditioningSodium Benzoate
Masking
Laureth-2
CleansingSqualane
Emollient
Prunus Amygdalus Dulcis Oil
Skin Conditioning
Prunus Armeniaca Kernel Oil
Masking
Tocopherol
Antioxidant
Ascorbyl Glucoside
Antioxidant
Persea Gratissima Oil
Skin Conditioning
Water, Sodium Laureth Sulfate, Decyl Glucoside, Glycerin, Cocamidopropyl Betaine, Disodium Cocoamphodiacetate, Acrylates Copolymer, Lauryl Glucoside, PEG-200 Hydrogenated Glyceryl Palmate, Triethanolamine, Sodium Chloride, Pentylene Glycol, Phenoxyethanol, PEG-7 Glyceryl Cocoate, Sodium Hydroxide, Citric Acid, Hexylene Glycol, Behenyl Alcohol, Distearyl Ether, Sodium Benzoate, Laureth-2, Squalane, Prunus Amygdalus Dulcis Oil, Prunus Armeniaca Kernel Oil, Tocopherol, Ascorbyl Glucoside, Persea Gratissima Oil
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinAcrylates Copolymer is used as a film-forming agent and texture enhancer.
After applied, Acrylates Copolymer forms a thin film cover that helps skin feel more soft. It can help sunscreens become more water-resistant.
It is also used to make a product more thick.
Learn more about Acrylates CopolymerPentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolChances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator.
You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating.
There is much debate on whether this ingredient is comedogenic. The short answer - comedogenic ratings don't tell the whole story. Learn more about comegodenic ratings here.
The concensus about this ingredient causing acne seems to be divided. Research is needed to understand if this ingredient does cause acne.
Scrubs may use salt as the primary exfoliating ingredient.
Learn more about Sodium ChloridePhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
SkinCeuticals Simply Clean Gel 17 ingredients
Kiehl's Ultra Facial Cleanser 27 ingredients
Reviews
Here's what our community thinks
SkinCeuticals Simply Clean Gel 17 ingredients
Kept my skin really clear and helped brighten, but was a bit too drying to use consistently
I went for a facial and they recommended using this product to help with my clogged pores. I started using it every day, twice a day. I thought it was working really well, but now my skin is pretty damaged.
Part of this is user error I'll admit.. but it includes a pretty strong fragrance (I like the smell but not good for sensitive skin). Do not use it everyday, and do not leave it on for more Show more
Kiehl's Ultra Facial Cleanser 27 ingredients
I honestly love this cleanser. I’ve been using it over the past 2 years morning and night. It really foams up nice like cushiony and smooth. There’s almost like a slip feel that makes it so nice, very elegant when rubbing on my face. Love this for second cleanser also after balm/oil on makeup days as it really does remove anything remaining and ensures the balm/oil residue is gone. No fragrance Show more
Cleansed fine but by the end of it I was just using it to get rid of it. Nothing spectacular, and not my preferred for dry skin
