Here's our complete breakdown comparing the ingredients, attributes, and more of COSRX AC Collection Lightweight Soothing Moisturizer versus COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap .
Last updated on July 18, 2023. Published on February 08, 2022
Overview
What they are
These products are both cruelty-free and reef safe general moisturizers. They have a total of 13 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
General Moisturizer
All-purpose moisturizers hydrate the top layer of skin cells.
General Moisturizer
All-purpose moisturizers hydrate the top layer of skin cells.
Price
Ingredient Info
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
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 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 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:
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:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
Propolis Extract • Aloe Barbadensis Leaf Water • Camellia Sinensis Leaf Water • Butylene Glycol • Cetyl Ethylhexanoate • Glycerin • 1,2-Hexanediol • Niacinamide • Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer • Cyclomethicone • Cetearyl Olivate • Betaine • Cetearyl Alcohol • Sorbitan Olivate • Panthenol • Ethylhexylglycerin • Allantoin • Xanthan Gum • Dimethicone/Vinyl Dimethicone Crosspolymer • Sodium Hyaluronate • Arginine • Zinc PCA • Betaine Salicylate • Mentha Haplocalix Extract • Menthyl Lactate • Citric Acid • Melaleuca Alternifolia Leaf Oil • Asiaticoside • Asiatic Acid • Madecassic Acid
Betula Platyphylla Japonica Juice • Butylene Glycol • Glycerin • Dimethicone • Betaine • Cetearyl Alcohol • 1,2-Hexanediol • Cetearyl Olivate • Sorbitan Olivate • Ethylhexylglycerin • Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer • Ethyl Hexanediol • Xanthan Gum • Allantoin • Panthenol • Sodium Hyaluronate • Sodium Lactate • 4-Terpineol • Water
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene 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.
COSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 4.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 2.
Glycerin 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 GlycerinCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 6.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 3.
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.
In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.
COSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 7.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 7.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients.
COSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 9.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 11.
Cetearyl Olivate is an emulsifier and texture enhancer. It is derived from the fatty acids of olive oil and Cetearyl alcohol, and is biodegradable.
As an emulsifier, it is used to prevent oils and waters from separating. It can also
Manufacturers use the name Olivem 1000. This ingredient has been found to preserve the natural microbiome of skin. Having a healthy microbiome helps keep our skin healthy and protects against harmful bacteria. This ingredient is grouped with Sorbitan Olivate under the name Olivem 1000.
Learn more about Cetearyl OlivateCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 11.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 8.
Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
Betaine is best for improving hydration and soothing irritated skin. Studies show betaine may help with uneven skin tones.
Betaine is naturally created in the skin and body. The form found within cosmetic products can be either plant-dervied or synthetic.
Learn more about BetaineCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 12.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 5.
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.
Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.
Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.
Learn more about Cetearyl AlcoholCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 13.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 6.
Sorbitan Olivate is created from the fatty acids in olive oil and sorbitol.
Sorbitan Olivate is an oil in water emulsifier. It helps stabilize a product by preventing oils and waters from separating. Sorbitan Olivate also helps hydrate the skin.
Manufacturers sell sorbitan olivate under the name OliveM 1000. OliveM 1000 a multifunctional ingredient. It is self-emulsifying. According to a manufacturer, OliveM 1000 does not disrupt natural skin biome.
Learn more about Sorbitan OlivateCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 14.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 9.
Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.
lt is a humectant, meaning that it helps the skin attract and retain moisture.
Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 15.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 15.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
COSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 16.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 10.
Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 17.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 14.
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.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 18.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 13.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateCOSRX AC Collection Lightweight Soothing Moisturizer contains this as ingredient number 20.
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap contains this as ingredient number 16.
Here's what our community thinks of the ingredients in these two products.
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
Reviews
Here's what our community thinks
COSRX AC Collection Lightweight Soothing Moisturizer 30 ingredients
COSRX Oil Free Ultra Moisturizing Lotion with Birch Sap 19 ingredients
CustardBunny
lasts forever
+ feels good on the skin
+not sticky or excessively fat
+ no smell
+ one little click is enough to last ur face and neck!
- can...
lasts forever
+ feels good on the skin
+not sticky or excessively fat
+ no smell
+ one little click is enough to last ur face and neck!
- can be expensive to buy
AlessandraRodriguez_228
GAVE ME A BREAKOUT
first product to ever be a direct cause for acne, i hope i get to pinpoin which ingridient was. When i stopped using this, the...
GAVE ME A BREAKOUT
first product to ever be a direct cause for acne, i hope i get to pinpoin which ingridient was. When i stopped using this, the acne went away too.
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