RoC Retinol Correxion Line Smoothing Daily Serum Versus Kate Somerville KX Concentrates Squalane + Hyaluronic Serum
Updated on February 21, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 23 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, 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 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 Correxion Line Smoothing Daily Serum 44 ingredients
Kate Somerville KX Concentrates Squalane + Hyaluronic Serum 36 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
RoC Retinol Correxion Line Smoothing Daily Serum 44 ingredients
Kate Somerville KX Concentrates Squalane + Hyaluronic Serum 36 ingredients
Key Ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningHydrogenated Ethylhexyl Olivate
EmollientCaprylic/Capric Triglyceride
MaskingSqualane
Emollient
Dimethicone
Emollient
PPG-24-Glycereth-24
EmulsifyingPropanediol
SolventGlycerin
Humectant
Potassium Cetyl Phosphate
EmulsifyingRetinol
Skin Conditioning
Glycine Soja Extract
Skin Conditioning1,2-Hexanediol
Skin ConditioningCetearyl Alcohol
Emollient
Glyceryl Stearate
Emollient
Sea Water
HumectantSodium PCA
HumectantTocopheryl Acetate
Antioxidant
Sodium Lauroyl Glutamate
Stearic Acid
Cleansing
Butyrospermum Parkii Butter
Skin Conditioning
Hydrogenated Olive Oil Unsaponifiables
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingParfum
Masking
Xanthan Gum
EmulsifyingCaprylhydroxamic Acid
Panthenol
Skin Conditioning
Phytosterols
Skin ConditioningWithania Somnifera Root Extract
Skin ConditioningDisodium EDTA
Helianthus Annuus Seed Oil
Emollient
Polyisobutene
Phenoxyethanol
Preservative
Hordeum Vulgare Extract
EmollientAloe Barbadensis Leaf Juice
Skin Conditioning
Ethylhexylglycerin
Skin ConditioningHydroxyproline
Skin ConditioningProline
Skin ConditioningSodium Hyaluronate
Humectant
Adenosine
Skin Conditioning
PEG-7 Trimethylolpropane Coconut Ether
EmulsifyingCucumis Sativus Seed Oil
Emollient
Allyl Methacrylates Crosspolymer
Emulsion StabilisingPolysorbate 20
Emulsifying
Tocopherol
Antioxidant
Water, Hydrogenated Ethylhexyl Olivate, Caprylic/Capric Triglyceride, Squalane, Dimethicone, PPG-24-Glycereth-24, Propanediol, Glycerin, Potassium Cetyl Phosphate, Retinol, Glycine Soja Extract, 1,2-Hexanediol, Cetearyl Alcohol, Glyceryl Stearate, Sea Water, Sodium PCA, Tocopheryl Acetate, Sodium Lauroyl Glutamate, Stearic Acid, Butyrospermum Parkii Butter, Hydrogenated Olive Oil Unsaponifiables, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Parfum, Xanthan Gum, Caprylhydroxamic Acid, Panthenol, Phytosterols, Withania Somnifera Root Extract, Disodium EDTA, Helianthus Annuus Seed Oil, Polyisobutene, Phenoxyethanol, Hordeum Vulgare Extract, Aloe Barbadensis Leaf Juice, Ethylhexylglycerin, Hydroxyproline, Proline, Sodium Hyaluronate, Adenosine, PEG-7 Trimethylolpropane Coconut Ether, Cucumis Sativus Seed Oil, Allyl Methacrylates Crosspolymer, Polysorbate 20, Tocopherol
Water
Skin ConditioningSqualane
Emollient
Glycerin
Humectant
PPG-24-Glycereth-24
EmulsifyingIsosorbide Disunflowerseedate
HumectantIsosorbide Dicaprylate
Skin ConditioningDimethicone
Emollient
Caprylic/Capric Triglyceride
MaskingPropanediol
SolventPanthenol
Skin Conditioning
Potassium Cetyl Phosphate
EmulsifyingTremella Fuciformis Sporocarp Extract
Antioxidant
Adenosine
Skin Conditioning
Sodium Acetylated Hyaluronate
Humectant
Sodium Hyaluronate
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Hydrolyzed Sodium Hyaluronate
Skin ConditioningGlyceryl Stearate
Emollient
Cetearyl Alcohol
Emollient
Glycine Soja Seed Extract
Skin ConditioningStearic Acid
Cleansing
Sodium Lauroyl Glutamate
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingXanthan Gum
EmulsifyingTetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate
Skin Conditioning1,2-Hexanediol
Skin ConditioningPentylene Glycol
Skin ConditioningCaprylhydroxamic Acid
Polyisobutene
PEG-7 Trimethylolpropane Coconut Ether
EmulsifyingEthylhexylglycerin
Skin ConditioningMagnesium Chloride
Disodium EDTA
Citric Acid
Buffering
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Water, Squalane, Glycerin, PPG-24-Glycereth-24, Isosorbide Disunflowerseedate, Isosorbide Dicaprylate, Dimethicone, Caprylic/Capric Triglyceride, Propanediol, Panthenol, Potassium Cetyl Phosphate, Tremella Fuciformis Sporocarp Extract, Adenosine, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Glyceryl Stearate, Cetearyl Alcohol, Glycine Soja Seed Extract, Stearic Acid, Sodium Lauroyl Glutamate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, 1,2-Hexanediol, Pentylene Glycol, Caprylhydroxamic Acid, Polyisobutene, PEG-7 Trimethylolpropane Coconut Ether, Ethylhexylglycerin, Magnesium Chloride, Disodium EDTA, Citric Acid, Potassium Sorbate, Sodium Benzoate
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 WaterThis ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric TriglycerideSqualane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.
Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.
Research shows that squalane is non-irritating (even at 100% concentration).
In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.
The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.
Is squalane vegan?
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Learn more about SqualaneDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeWe don't have a description for PPG-24-Glycereth-24 yet.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolGlycerin 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 GlycerinPotassium Cetyl Phosphate is the potassium salt of a mixture. This mixture consists of the esters from phosphoricacid and cetyl alcohol.
Potassium Cetyl Phosphate is an emulsifier and cleansing agent. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.
As a cleansing agent, Potassium Cetyl Phosphate helps gather oils, dirts, and pollutants from your skin. This makes it easier to rinse them away with water.
Learn more about Potassium Cetyl Phosphate1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
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 AlcoholGlyceryl Stearate is a mix of glycerin and stearic acid.
It is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.
As an emollient, it helps soften skin and supports barrier-replenishing ingredients.
In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced.
This ingredient may not be fungal-acne safe
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateSodium Lauroyl Glutamate is the sodium salt from the lauric acid of glutamic acid.
It is a surfactant and helps cleanse the skin. Surfactants gather oil, dirt, and other pollutants from your skin so they may be washed away easily.
Stearic 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 AcidThis 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.
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 GumCaprylhydroxamic Acid is a chelating agent.
Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product.
Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.
Learn more about Caprylhydroxamic AcidPanthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolDisodium 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 EDTAPolyisobutene is a synthetic polymer made from isobutene.
It is a film-forming agent and helps bind ingredients together.
Polyisobutene is not absorbed by the skin.
Learn more about PolyisobuteneEthylhexylglycerin (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.
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 HyaluronateAdenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineThis helper ingredient is a surfactant and emulsifier. It is created from coconut alcohol.
Surfactants help reduce surface tension while emulsifiers prevent ingredients from separating.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
