Versus

Medik8 Crystal Retinal - 1 Versus COSRX The Retinol 0.1 Cream

Serum
Facial Treatment
British Brand
Korean Brand

Updated on June 18, 2025

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 13 ingredients in common

Cool Features

They both contain hyaluronic acid, retinoid, 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, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, parabens or sulfates

What's Inside

They both contain oils

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

Medik8 Crystal Retinal 43 ingredients

COSRX The Retinol 0.1 Cream 51 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

Medik8 Crystal Retinal 43 ingredients

COSRX The Retinol 0.1 Cream 51 ingredients

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Crystal Retinal
The Retinol 0.1 Cream

Water

Skin Conditioning

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Butyrospermum Parkii Butter

Skin Conditioning
Helps hydrate Dry Skin IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Trehalose

Humectant
Helps hydrate Dry Skin Icon

Glycine Soja Oil

Emollient
3 / 0 Oil IconHelps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Dimethicone

Emollient
1 / 0 Silicon Icon

Glyceryl Polymethacrylate

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Polyglyceryl-10 Stearate

Skin Conditioning
Not safe for Fungal Acne Icon

Hydrogenated Lecithin

Emulsifying
Helps hydrate Dry Skin Icon

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Carbomer

Emulsion Stabilising
1 / 0

Tromethamine

Buffering

Glyceryl Stearate

Emollient
1 / 0 Not safe for Fungal Acne Icon

Polysilicone-11

Sodium Sulfite

Preservative
Preservative Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Daucus Carota Sativa Root Extract

Skin Conditioning
Helps reduce irritation Icon

Allantoin

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Glyceryl Caprylate

Emollient

Oryza Sativa Bran Wax

Skin Conditioning
Helps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Retinol

Skin Conditioning
Retinoid IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconMay worsen Rosacea Icon

Tocotrienols

Skin Conditioning

Stearic Acid

Cleansing
2-3 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Polyglyceryl-3 Methylglucose Distearate

Emulsifying
Not safe for Fungal Acne Icon

Palmitic Acid

Emollient
2 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Disodium EDTA

Ethylhexylglycerin

Skin Conditioning

Adenosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing Icon

Sorbitan Isostearate

Emulsifying
1-2 / 0 Not safe for Fungal Acne Icon

Elaeis Guineensis Oil

Emollient
Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

BHT

Antioxidant
Antioxidant Icon

Beta-Carotene

Skin Conditioning

Myristic Acid

Cleansing
3 / 0 Bad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Lauric Acid

Cleansing
4 / 1 May worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

Ascorbic Acid

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Glutathione

Good for Dark Spots Icon

Limnanthes Alba Seed Oil

Skin Conditioning
Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

1,2-Hexanediol

Skin Conditioning
Helps hydrate Dry Skin Icon

Hydrolyzed Hyaluronic Acid

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon

Sodium Hyaluronate Crosspolymer

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconGood for Scar Healing Icon

Hyaluronic Acid

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon

Sodium Acetylated Hyaluronate

Humectant
Hyaluronic Acid Icon

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

You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.

Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.

3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.

Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.

The optimum pH range for this ingredient is 4 - 5.5

Learn more about 3-O-Ethyl Ascorbic Acid
BHT
Antioxidant, Masking

BHT is a synthetic antioxidant and preservative.

As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.

As a preservative, it is used to stabilize products and prevent them from degrading. Specifically, BHT prevents degradation from oxidation.

The concerns related to BHT come from oral studies; this ingredient is currently allowed for use by both the FDA and EU.

However, it was recently restricted for use in the UK as of April 2024.

Learn more about BHT
Masking, Skin Conditioning

This 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 Triglyceride
Emollient, Emulsifying, Emulsion Stabilising

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 Alcohol

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
Skin Conditioning

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.

Humectant, Skin Conditioning, Skin Protecting

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 Glycerin

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.

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
Emulsifying

Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.

As an emulsifier, Sorbitan Isostearate prevents oils and water from separating.

Due to its isostearic acid base, it may not be safe for Malassezia or fungal acne.

Learn more about Sorbitan Isostearate
Cleansing, Emulsifying, Emulsion Stabilising

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 Acid
Antioxidant, Skin Conditioning

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.

One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.

Tocopheryl Acetate is commonly found in both skincare and dietary supplements.

Learn more about Tocopheryl Acetate
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

Medik8 Crystal Retinal 43 ingredients

COSRX The Retinol 0.1 Cream 51 ingredients

82 Routines
4% use in am
96% use in pm
51% use every day
When to use See routines that use it ->
363 Routines
5% use in am
95% use in pm
55% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Medik8 Crystal Retinal 43 ingredients

4.60
Overall rating
5
4
3
2
1
What people say
Expensive 60% Absorbs Well 40% Broke Me Out 40%

COSRX The Retinol 0.1 Cream 51 ingredients

4.25
Overall rating
5
4
3
2
1
What people say
Absorbs Well 67% Light 67% Works Well 67%