Versus

COSRX The Vitamin C 23 Serum Versus Clinique Even Better Clinical™ Radical Dark Spot Corrector + Interrupter

Serum
Serum
Korean Brand
American Brand

Updated on June 28, 2024

Overview

What they are

These products are both reef safe serums. They have a total of 10 ingredients in common

Cool Features

They both contain hyaluronic acid, Vitamin C and Vitamin E

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores and better texture

Free From

They both do not contain any 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

Click any item below to learn more and see relevant ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
The Vitamin C 23 Serum
Even Better Clinical™ Radical Dark Spot Corrector + Interrupter

Water

Skin Conditioning

Cyclopentasiloxane

Emollient
Silicon Icon

Dimethicone

Emollient
1 / 0 Silicon Icon

Polysilicone-11

Isododecane

Emollient

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Ascorbyl Glucoside

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

PEG-10 Dimethicone

Skin Conditioning
Silicon Icon

PEG-6

Humectant

Morus Bombycis Root Extract

Skin Conditioning

Scutellaria Baicalensis Root Extract

Astringent

Camellia Sinensis Leaf Extract

Antimicrobial
Antioxidant IconHelps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging Icon

Cucumis Sativus Fruit Extract

Emollient
Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon

Saccharomyces Lysate Extract

Humectant
Helps hydrate Dry Skin Icon

Hordeum Vulgare Extract

Emollient

Salicylic Acid

Masking
BHA IconPreservative IconGood for Oily Skin IconGood for Minimizing Pores IconHelps fight Acne IconHelps brighten skin IconCan worsen Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Triticum Vulgare Germ Extract

Skin Conditioning

Cholesterol

Emollient
0 / 0 Helps hydrate Dry Skin Icon

Oryza Sativa Bran Extract

Skin Conditioning
Helps hydrate Dry Skin Icon

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Acetyl Glucosamine

Skin Conditioning

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

Caffeine

Skin Conditioning
Helps reduce irritation IconHelps with Anti-Aging Icon

Isohexadecane

Emollient

Betula Alba Bark Extract

Masking
Fragrance Icon

Trametes Versicolor Extract

Sodium Rna

Skin Conditioning

Glycyrrhetinic Acid

Skin Conditioning

Dimethoxytolyl Propylresorcinol

Antioxidant
Antioxidant Icon

Di-C12-18 Alkyl Dimonium Chloride

Skin Conditioning

Helianthus Annuus Seedcake

Abrasive
Exfoliant IconNot safe for Fungal Acne Icon

Yeast Extract

Skin Conditioning
Not safe for Fungal Acne Icon

Caprylyl Glycol

Emollient

Propylene Glycol Dicaprate

Emollient

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Acrylamide/Sodium Acryloyldimethyltaurate Copolymer

Emulsion Stabilising

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Polysorbate 80

Emulsifying
0 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Tromethamine

Buffering

Sodium Hydroxide

Buffering

Hexylene Glycol

Emulsifying
0-2 / 0-1

Disodium EDTA

Sodium Benzoate

Masking
Preservative Icon

Sodium Metabisulfite

Antioxidant
Antioxidant IconPreservative Icon

Sodium Sulfite

Preservative
Preservative Icon

Phenoxyethanol

Preservative
Preservative Icon

CI 15985

Cosmetic Colorant

CI 19140

Cosmetic Colorant

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning

Acetyl Glucosamine is an antioxidant and humectant. It is an amino acid sugar and is naturally found in our skin.

The cool thing about this ingredient? It helps the skin produce hyaluronic acid and boost hydration. It also has antioxidant benefits to protect skin cells.

When paired with niacinamide, Acetyl Glucosamine has been shown to be effective at reducing discoloration.

Learn more about Acetyl Glucosamine
Humectant, Masking, Skin Conditioning

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Learn more about Butylene Glycol
Skin Conditioning

Caffeine is most associated with coffee, tea, and cacao. In skincare, it helps with calming inflammation and is rich in antioxidants.

While caffeine is used to treat cellulite and and dark circles, further studies are needed to prove this. It has been believed to help with these skin conditions due to its ability to dilate blood vessels and increase blood flow.

Some studies are looking into caffeine's ability to protect against UV rays.

Learn more about Caffeine
Emollient, Skin Conditioning, Skin Protecting

Dimethicone 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 Dimethicone

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 EDTA
Humectant, Skin Conditioning

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 Hyaluronate
Preservative

Sodium Sulfite is a preservative. Preservatives help prevent mold and bacteria from growing in cosmetics.

This ingredient has been shown to break the bonds in hair, acting as a natural straightener.

It is commonly used in food. It should be noted sodium sulfite degrades both vitamins B1 and E.

Fun fact: Sulfites are naturally occuring in wine.

Learn more about Sodium Sulfite
Emollient, Skin Conditioning

Squalane 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".

Is squalane an oil?

Squalane is often called an oil, but it’s technically not; it’s a hydrocarbon, meaning it’s only made of carbon and hydrogen, unlike true oils which are triglycerides made of fatty acids and glycerol.

The term “oil-free” isn’t regulated, so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils.

While some people avoid oils thinking they cause breakouts, the right kind of oil (or oil-like ingredient like squalane) can actually help balance and hydrate your skin. It’s worth testing out simple oils or squalane to see what works best for your skin.

Learn more about Squalane
Buffering, Masking

Tromethamine helps balance the pH and improve the texture of a product. It is synthetically created.

As an emulsifier, Tromethamine prevents oil and water ingredients from separating. This helps stabilize the product and elongate a product's shelf life. Tromethamine also makes a product thicker.

Tromethamine helps balance the pH level of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.

Oral Tromethanmine is an anti-inflammatory drug but plays the role of masking, adding fragrance, and/or balancing pH in skincare.

1,3-Propanediol, 2-amino-2-(hydroxymethyl)-

Learn more about Tromethamine
Skin Conditioning, Solvent

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 Water

When to use

641 Routines
76% use in am
24% use in pm
92% use every day
When to use See routines that use it ->
72 Routines
54% use in am
46% use in pm
89% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

COSRX The Vitamin C 23 Serum 34 ingredients

3.44
Overall rating
5
4
3
2
1
What people say
Oily 36% Works Well 36% Strong Scent 29%
5.00
Overall rating
5
4
3
2
1
What people say
Absorbs Well 100% Great Value 100% No Scent 100%