Updated on December 27, 2023
Overview
What they are
These products are both reef safe face cleansers. They have a total of 10 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, parabens, silicones or sulfates
What's Inside
They both contain common allergens, fragrances and 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
COSRX AC Collection Calming Foam Cleanser 24 ingredients
La Mer The Cleansing Foam 54 ingredients
At a glance
Click on any of the items below to learn more
COSRX AC Collection Calming Foam Cleanser 24 ingredients
La Mer The Cleansing Foam 54 ingredients
Notable Ingredients
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Concerns
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Notable Ingredients
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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.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Myristic Acid is a saturated fatty acid. It is naturally found in milk fat. Other sources include palm oil, coconut oil, and butter fat.
Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
Palmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.
Lauric Acid is a fatty acid or lipid. About half of fatty acids in coconut oil is lauric acid.
Glyceryl Stearate is a mix of glycerin and stearic acid.
Peg-100 Stearate is an emollient and emulsifier. PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.
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.
This ingredient is the potassium salt of coconut acid. Coconut acid is created by mixing fatty acids from coconut oil.
Preservative 5 Benefits 4 Concerns
Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
Arachidic Acid is a fatty acid naturally found in peanut oil and cocoa butter. Like other fatty acids, arachidic acid moisturizes the skin.
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.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Oleic Acid is an Omega-9 fatty acid. It can be found in many plant oils such as avocado and marula oils.
Limonene is a fragrance that adds scent and taste to a formulation.
Asiaticoside comes from the super popular skin-soothing ingredient, Centella asiatica. It is one of four active compounds found in the extract of Centella Asiatica.
Asiatic Acid is a major component of Centella Asiatica Extract. It has wound-healing, anti-inflammatory, and antioxidant properties.
Madecassic Acid is a major component of Centella Asiatica Extract. It has anti-inflammatory and antioxidant properties.
Water, Glycerin, Stearic Acid, Myristic Acid, Peg-32, Potassium Hydroxide, Palmitic Acid, Lauric Acid, Glyceryl Stearate, Peg-100 Stearate, Lauramide Dea, Cocamidopropyl Betaine, Potassium Cocoate, Salicylic Acid, Sodium Chloride, Arachidic Acid, Lavandula Hybrida Oil, Linalool, Disodium EDTA, Oleic Acid, Limonene, Asiaticoside, Asiatic Acid, Madecassic 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.
Myristic Acid is a saturated fatty acid. It is naturally found in milk fat. Other sources include palm oil, coconut oil, and butter fat.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Behenic Acid is a fatty acid and has moisturizing properties.
Palmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.
This gentle cleansing and foaming ingredient is known for leaving a smooth feeling in skin and hair. It is made using coconut oil.
Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
Lauric Acid is a fatty acid or lipid. About half of fatty acids in coconut oil is lauric acid.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Algae Extract is derived from Algae. Algae is an informal term for a group of aquatic organisms that can photosynthesize. It is estimated there are at least 30,000 types of Algae.
Not safe for Fungal Acne
Sesame oil comes from sesame seeds. Sesame oil is rich in fatty acids and Vitamin E.
Not safe for Fungal Acne
Helianthus Annuus Seedcake is an exfoliant and isn't fungal acne safe.
Prunus Amygdalus Dulcis Seed Meal comes from the Sweet Almond tree. This sweet almond seed meal is the residue from expressing almond oil.
Oil EU Allergen
This oil is derived from the leaves of Eucalyptus Globulus, a type of Eucalyptus tree native to Australia.
This is the synthetic salt of gluconic acid, a form of PHA and mild exfoliant.
Glycine is an amino acid that helps build proteins. It is already present in our skin as our bodies produce them naturally.
Niacin is the other form of B3, with the other being niacinamide. The two have similar skin benefits: reducing inflammation, strengthening the skin barrier, and fading dark spots.
Pearl Powder is made by grinding up fresh-water or salt-water pearls. Pearls are rich in amino-acids, magnesium, potassium, calcium, and antioxidant compounds.
Caffeine is most associated with coffee, tea, and cacao. In skincare, it helps with calming inflammation and anti-aging.
4 Concerns
Sea Salt is an exfoliant. It can be bad for dry skin, cause irritation, worsen eczema, and worsen rosacea.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Sucrose is a natural sugar found in fruits, vegetables, and nuts. It is the main constituent of white sugar.
Polyquaternium-51 is a polymer salt. It helps hydrate the skin by creating a film on top. This film traps moisture in, keeping your skin soft and hydrated.
Aloe Barbadensis Leaf Water is an aqueous solution of the steam distillate obtained from the leaves of the aloe, Aloe barbadensis, Liliaceae.
Trehalose is a disaccharide made of two glucose molecules (glucose is sugar!). Trehalose is used to help moisturize skin. It also has antioxidant properties.
Cellulose is the main component of plant cell walls. It is used as an emulsifier, absorbent, and texture enhancer.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Sodium PCA is the sodium salt of pyroglutamic acid and is naturally occurring on human skin.
Urea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
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.
Limonene is a fragrance that adds scent and taste to a formulation.
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.
2 Concerns
MCI is a preservative and known skin-irritant. It has anti-bacteria anti-fungal properties.
2 Concerns
MI is a preservative and known skin irritant. In the past, MI was used for its ability to prevent bacteria, yeast, and fungi growth in low doses.
CI 19140 is also known as Tartrazine. Tartrazine is a synthetic dye used in cosmetics, foods, and medicine to add a yellow color.
Ci 15985 is a dye made from petroleum. It is synthetically created and approved by the FDA for use in foods and cosmetics.
Ci 42090 is a synthetic dye created from petroleum. It is used to give a bright blue color to cosmetics, medicine, and food.
Water, Myristic Acid, Glycerin, Behenic Acid, Palmitic Acid, Sodium Methyl Cocoyl Taurate, Potassium Hydroxide, Lauric Acid, Stearic Acid, Algae Extract, Sesamum Indicum Seed Oil, Medicago Sativa Seed Powder, Helianthus Annuus Seedcake, Prunus Amygdalus Dulcis Seed Meal, Eucalyptus Globulus Leaf Oil, Sodium Gluconate, Copper Gluconate, Calcium Gluconate, Glycine, Zinc Gluconate, Tocopheryl Succinate, Niacin, Sesamum Indicum Seed Powder, Quartz Powder, Nephrite Powder, Pearl Powder, Caffeine, Sea Salt, Humic Acids, Sodium Hyaluronate, Sucrose, Tourmaline, Macrocystis Pyrifera Protein, Polyquaternium-51, Aloe Barbadensis Leaf Water, Trehalose, Cellulose, Butylene Glycol, Sodium Coco Pg-Dimonium Chloride Phosphate, Sodium Bicarbonate, Sodium PCA, Peg-3 Distearate, Urea, Parfum, Disodium EDTA, Linalool, Limonene, Phenoxyethanol, Methylchloroisothiazolinone, Methylisothiazolinone, CI 19140, CI 15985, CI 42090, CI 61570
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 GlycerinStearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
As an emollient, stearic acid helps soften skin. It aids the skin's protective barrier by preventing water loss. It also provides a gentle cleansing effect without stripping away natural oils.
Stearic acid may also be used to enhance the texture of products. It can add volume and stabilize ingredients such as water and oil. This can help water and oil ingredients from separating.
Sources of stearic acid include animal or vegetable fats/oils such as coconut or shea. It can be naturally found in butter, cocoa butter, shea butter, vegetable fats, and animal tallow.
This ingredient may not be Malassezia folliculitis, or fungal-acne safe.
Learn more about Stearic AcidMyristic Acid is a saturated fatty acid. It is naturally found in milk fat. Other sources include palm oil, coconut oil, and butter fat.
Myristic Acid is an emulsifer and cleanser. As an emulsifer, it stabilizes a product by preventing ingredients from separating. Myristic Acid helps clean your skin by acting as a surfactant. It tends to gather oil and dirt on your skin to be easily rinsed away.
One study from 2021 found Myristic Acid to have anti-inflammatory properties.
Learn more about Myristic AcidPotassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.
Using high concentrations of Potassium Hydroxide have shown to irritate the skin.
Learn more about Potassium HydroxidePalmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.
As an emollient, it helps hydrate the skin. The emulsifying properties keep ingredients together in a product.
Palmitic Acid may not be fungal-acne safe. It can worsen oily skin and cause breakouts due to its emollient nature.
Learn more about Palmitic AcidLauric Acid is a fatty acid or lipid. About half of fatty acids in coconut oil is lauric acid.
This ingredient helps hydrate and sooth skin. As a humectant, it helps trap moisture. It also aids in cleaning and enhancing the texture of products.
Emerging studies show Lauric Acid to have antimicrobial and anti-inflammatory properties. The antimicrobial property helps strengthen the skin barrier by fighting off bad bacteria.
Lauric acid may not be Malassezia folliculitis, or fungal acne, safe.
Learn more about Lauric AcidLinalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Linalool has the same effect as Limonene when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
Linalool has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTALimonene 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 LimoneneIngredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
COSRX AC Collection Calming Foam Cleanser 24 ingredients
La Mer The Cleansing Foam 54 ingredients
Reviews
Here's what our community thinks
COSRX AC Collection Calming Foam Cleanser 24 ingredients
La Mer The Cleansing Foam 54 ingredients
TaylorForman_1
Best Cleanser I have ever come accross
I have gone through many cleansers. This is by far the best I have come accross.
