Updated on July 18, 2023
Overview
What they are
These products are both fungal acne (malassezia) safe and reef safe face cleansers. They have a total of 6 ingredients in common
Suited For
They're both likely to be good for dry skin, brightening skin and sensitive skin
Free From
They both do not contain any harsh alcohols, parabens or silicones
What's Inside
They both contain common allergens and fragrances
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
Kiehl's Calendula Deep Clean Foaming Face Wash 18 ingredients
ZO Skin Health Gentle Cleanser 26 ingredients
At a glance
Click on any of the items below to learn more
Kiehl's Calendula Deep Clean Foaming Face Wash 18 ingredients
ZO Skin Health Gentle Cleanser 26 ingredients
Benefits
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Concerns
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Benefits
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Concerns
This product contains 2 ingredients that may have this attribute:
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Ingredients Side-by-side
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.
Sodium Cocoyl Glycinate is a cleansing agent. It can be naturally derived or synthetically-created.
Coco-Betaine is the natural version of Cocamidopropyl Betaine. It is often derived from coconuts.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
Phenoxyethanol 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.
Oil EU Allergen
Citrus Limon Peel Oil is created from the peels of the lemon. It is used to add a lemon-scent to products. Lemon peel oil also has antibacterial, antifungal, and antioxidant properties. However, it may also cause phototoxicity and sensitize skin.
Limonene is a fragrance that adds scent and taste to a formulation.
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.
Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
EU Allergen
Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.
2 Benefits
Calendula Officinalis Flower Extract comes from the common Marigold plant. This ingredient is a skin conditioner.
EU Allergen
Cymbopogon Schoenanthus Oil is also known as lemongrass oil. It is used as a fragrance in cosmetics.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Water, Sodium Cocoyl Glycinate, Coco-Betaine, Glycerin, Acrylates Copolymer, Sodium Chloride, Phenoxyethanol, Citrus Limon Peel Oil, Limonene, Sodium Hydroxide, Tetrasodium EDTA, Propylene Glycol, Geranium Maculatum Oil, Citral, Calendula Officinalis Flower Extract, Cymbopogon Schoenanthus Oil, Artemisia Absinthium Extract, Citric Acid
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.
Can worsen Dry Skin
Sodium Laureth Sulfate (SLES) is a foaming, cleansing, and emulsifying ingredient. It is created from palm kernel oil or coconut oil. SLES is not the same as sodium lauryl sulfate. It is much milder and less likely to irritate.
Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine. Dimethylaminopropylamine is a diamine, an amine with two amino groups.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
Artemisia Vulgaris Extract is more commonly known as the common mugwort. It has strong antioxidant properties and helps soothe irritation.
5 Benefits
Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Phenoxyethanol 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.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
May worsen Eczema
Benzoic Acid is used to preserve and adjust the pH of products.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Ci 42090 is a synthetic dye created from petroleum. It is used to give a bright blue color to cosmetics, medicine, and food.
EU Allergen
Citronellol is used to add fragrance/parfum to a product. It is often derived from plants such as roses. In fact, it can be found in many essential oils including geranium, lavender, neroli, and more. The scent of Citronellol is often described as "fresh, grassy, and citrus-like".
EU Allergen
Hexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.
Limonene is a fragrance that adds scent and taste to a formulation.
2 Concerns
Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Water, Sodium Laureth Sulfate, Cocamidopropyl Betaine, Sodium Lauroyl Oat Amino Acids, Sodium Chloride, Artemisia Vulgaris Extract, Camellia Sinensis Leaf Extract, Crithmum Maritimum Extract, Hordeum Distichon Extract, Phellodendron Amurense Bark Extract, Plantago Lanceolata Leaf Extract, Pterocarpus Soyauxii Wood Extract, Spiraea Ulmaria Extract, Butylene Glycol, Glycerin, Tetrasodium EDTA, Phenoxyethanol, Ethylhexylglycerin, Benzoic Acid, Parfum, CI 42090, CI 17200, Citronellol, Hexyl Cinnamal, Limonene, Linalool
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 GlycerinChances 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.
Limonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about LimoneneTetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Tetrasodium EDTA comes as a white solid and is soluble in water.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
Kiehl's Calendula Deep Clean Foaming Face Wash 18 ingredients
ZO Skin Health Gentle Cleanser 26 ingredients
Reviews
Here's what our community thinks
