COSRX Salicylic Acid Daily Gentle Cleanser Versus La Roche-Posay EFFACLAR K+
Updated on June 19, 2024
Overview
What they are
These products are both reef safe . They have a total of 4 ingredients in common
Cool Features
They both contain BHA
Suited For
They're both likely to be good for fighting acne, brightening skin, oily skin, reducing pores and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
What's Inside
They both contain 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
COSRX Salicylic Acid Daily Gentle Cleanser 23 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
At a glance
Click on any of the items below to learn more
COSRX Salicylic Acid Daily Gentle Cleanser 23 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient 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.
Myristic Acid is a saturated fatty acid. It is naturally found in milk fat. Other sources include palm oil, coconut oil, and butter fat.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
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 gentle cleansing and foaming ingredient is known for leaving a smooth feeling in skin and hair. It is made using coconut oil.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Not safe for Fungal Acne
Peg-60 Hydrogenated Castor Oil comes from hydrogenated castor oil. It is a solubilizer and emulsifier.
Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
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.
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.
Lauric Acid is a fatty acid or lipid. About half of fatty acids in coconut oil is lauric acid.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Salix Alba Bark Water is created by distilling parts from the white willow tree. The white willow tree is native to Europe and Central Asia.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Glycol Distearate serves as a pearlizing or opacifying agent in cosmetic products.
Fragrance Oil Good for Oily Skin
This tea tree oil comes from the leaves of the Tea Tree plant. Tea tree oil has antioxidant, anti-inflammatory, and antimicrobial properties.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Water, Myristic Acid, Sodium Chloride, Ethyl Hexanediol, Cocamidopropyl Betaine, Citrus Limon Fruit Oil, Sodium Methyl Cocoyl Taurate, Ethylhexylglycerin, Stearic Acid, Peg-60 Hydrogenated Castor Oil, Polysorbate 80, Caprylyl Glycol, Glycerin, Potassium Hydroxide, Salicylic Acid, Lauric Acid, Butylene Glycol, Salix Alba Bark Water, 1,2-Hexanediol, Disodium EDTA, Glycol Distearate, Melaleuca Alternifolia Leaf Oil, 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.
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Octyldodecanol is a fatty alcohol. It is primarily used to enhance the texture of products.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
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.
Glyceryl Stearate is a mix of glycerin and stearic acid.
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.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.
Zinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
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.
2 Concerns
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Silica Silylate is a siloxane polymer, meaning it is made up of silicon and oxygen atoms. It is not soluble in water.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Capryloyl Salicylic Acid comes from salicylic acid, the famous acne-fighting BHA.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
Pentylene 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.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Water, Propylene Glycol, Octyldodecanol, Dimethicone, Peg-100 Stearate, Glyceryl Stearate, Salicylic Acid, Ammonium Polyacryloyldimethyl Taurate, Zinc PCA, Sarcosine, Sodium Hydroxide, Silica, Silica Silylate, Perlite, Carnosine, Disodium EDTA, Capryloyl Salicylic Acid, Xanthan Gum, Pentylene Glycol, Acrylates Copolymer, Cetyl Alcohol, Butylene Glycol, Tocopherol, Parfum
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 WaterSalicylic 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.
This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.
Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.
In general, Salicylic Acid is a great ingredient for oily acne-prone skin.
While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Learn more about Salicylic AcidButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Disodium 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 EDTAIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX Salicylic Acid Daily Gentle Cleanser 23 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
Reviews
Here's what our community thinks
COSRX Salicylic Acid Daily Gentle Cleanser 23 ingredients
skinogre
I used to think it was good because of how it really goes DEEP into cleaning your skin, it feels like it’s been scraped out. It’s good if you...
I used to think it was good because of how it really goes DEEP into cleaning your skin, it feels like it’s been scraped out. It’s good if you haven’t washed your face in a week, other than that it’s really bad. And that’s coming from someone who has oily skin and uses Paula’s choice BHA every other day. There are so many better cleansing products than this, I highly advise getting the Etude house foam 6.5 whip cleaner instead and using an exfoliant alongside it. One thing I do like about this cleanser is its consistency, I always loved how it would squirt out but on the downside was it’s drying out of skin. It never “ruined” my skin per se, but there are a lot better products than this for daily cleansing. If you want your skin to feel EXTREMELY scraped of all oils and its essence, sure use this.
La Roche-Posay EFFACLAR K+ 24 ingredients
KaterinaLaskaraki_411
i dont see a change on my skin. it is still oily with black spots. I use this product since a year ago but Im dissapointed.
