Updated on June 20, 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 retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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 needs an update? Let us know.
Ingredient Info
RoC Retinol Correction® Line Smoothing Max Hydration Cream 31 ingredients
COSRX Real Fit Retinol Serum 23 ingredients
At a glance
Click on any of the items below to learn more
RoC Retinol Correction® Line Smoothing Max Hydration Cream 31 ingredients
COSRX Real Fit Retinol Serum 23 ingredients
Notable Ingredients
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Benefits
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Concerns
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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.
Pentaerythrityl Tetraethylhexanoate is an emollient. Emollients help your skin stay soft and smooth by creating a thin film on top. This film helps trap moisture. It also helps improve the texture of products by adding thickness or helping to create a silky feel.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
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.
Stearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients.
3 Concerns
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.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Glyceryl Behenate is a fatty acid created from glycerin and behenic acid. It is an emollient and emulsifier.
Ceteareth-20 is an emulsifier and cleansing agent. It is derived from cetearyl alcohol, a fatty alcohol.
Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.
Dimethicone Crosspolymer is a silicone created by modifying dimethicone with hydrocarbon side chains. Due to its large size, it does not penetrate skin. It is considered non-occlusive.
Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.
Polyethylene is a synthetic ingredient that helps the skin retain moisture. It is a polymer.
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.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
We don't have a description for Sodium Acryloyldimethyltaurate/Vp Crosspolymer.
Polyacrylamide is a synthetic polymer. It is used to stabilize products and bind ingredients. When hydrated, Polyacrylamide forms a soft gel.
PTFE is a form of PFAS, or "Per- and polyfluoroalkyl substances". This ingredient has been used in commercial applications since the 1940's.
C13-14 Isoparaffin is created from petroleum-based mineral oils. It is an emollient and helps thicken a product.
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
8 Benefits 3 Concerns
Retinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
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.
Laureth-7 is created by the ethoxylation of lauryl alcohol using ethylene oxide. Lauryl alcohol is a fatty alcohol with hydrating properties.
Antioxidant 6 Benefits
Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Water, Pentaerythrityl Tetraethylhexanoate, Glycerin, Dimethicone, Ppg-15 Stearyl Ether, Stearyl Alcohol, Cetearyl Alcohol, Butylene Glycol, Glyceryl Behenate, Ceteareth-20, Isohexadecane, Dimethicone Crosspolymer, Cyclopentasiloxane, Polyethylene, Sodium Polyacrylate, Phenoxyethanol, Caprylyl Glycol, Sodium Acryloyldimethyltaurate/Vp Crosspolymer, Polyacrylamide, Ptfe, C13-14 Isoparaffin, Chlorphenesin, Polysorbate 20, Hydrolyzed Myrtus Communis Leaf Extract, Retinol, BHA, Sodium Hyaluronate, Disodium EDTA, Sodium Hydroxide, Laureth-7, Ascorbic Acid
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.
Helps hydrate Dry Skin 2 Concerns
Helianthus Annuus Seed Oil is the oil derived from the seeds of a Sunflower. Sunflower seed oil is non-fragrant. It is an emollient, meaning it helps to soften the skin.
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.
Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.
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.
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.
3 Concerns
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.
7 Benefits 3 Concerns
Retinyl palmitate is a form of retinoid. Retinoids are the superstar class of anti-aging ingredients that include tretinoin and retinol.
Cetearyl Olivate is an emulsifier and texture enhancer. It is derived from the fatty acids of olive oil and Cetearyl alcohol, and is biodegradable.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
Not safe for Fungal Acne
Arachis Hypogaea Oil is from peanuts. It is an emollient and helps soften the skin.
Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Antioxidant Helps brighten skin
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
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.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
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.
Calendula Officinalis Extract, Butylene Glycol, Glycerin, Helianthus Annuus Seed Oil, 1,2-Hexanediol, Polysorbate 60, Betaine, Dimethicone, Cetearyl Alcohol, Retinyl Palmitate, Cetearyl Olivate, Panthenol, Arachis Hypogaea Oil, Sorbitan Olivate, Allantoin, Tocopheryl Acetate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Xanthan Gum, Juniperus Mexicana Oil, Ethylhexylglycerin, Adenosine, Tocopherol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 GlycerinDimethicone 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.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
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 AlcoholButylene 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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
