Kosé Suncut UV Perfect Essence Super Waterproof SPF 50+ PA++++ Ingredients Explained

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Published on June 02, 2022. Submitted by MontjoieStDenis.

Overview

What it is

Sunscreen with 37 ingredients that contains exfoliants, hyaluronic acid and SPF

Suited For

It has ingredients that are good for anti aging, dry skin, brightening skin and sensitive skin

Free From

It doesn't contain any common allergens or sulfates

Fun facts

Kosé is from Japan. This product is used in 10 routines created by our community.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Chemical UV Filter (3)
Exfoliators (2)
Hyaluronic Acid

Benefits

Hydrating (2)
Redness Reducing (2)
Reduces Irritation (2)
Anti-Aging
Brightening

Concerns

Drying
May Worsen Oily Skin
Irritating (2)
Rosacea (2)
Eczema (3)

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
spf rating
50

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Skin Conditioning, Solvent
2
UV Absorber, UV Filter
0 / 0
Chemical UV Filter IconMay cause irritation IconNon-Reef-Safe Icon
3
Antimicrobial, Astringent, Masking, Solvent
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
4
Emollient, Solvent
5
UV Filter
6
UV Filter
Chemical UV Filter Icon
7
Skin Conditioning, UV Absorber, UV Filter
Chemical UV Filter Icon
8
Abrasive, Absorbent
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon
9
Masking, Solvent
10
Humectant, Skin Conditioning, Skin Protecting, Solvent
0 / 0
Helps hydrate Dry Skin IconHelps brighten skin Icon
11
Emollient
12
Emollient, Emulsion Stabilising
13
Masking, Perfuming, Skin Conditioning
Fragrance Icon
14
Masking, Perfuming, Skin Conditioning
Fragrance IconHelps reduce Skin Redness IconHelps reduce irritation Icon
15
Astringent, Skin Conditioning
16
Masking, Skin Conditioning
Helps reduce Skin Redness IconHelps reduce irritation Icon
17
Skin Conditioning
18
Astringent, Emollient, Soothing, Tonic
19
Emollient, Skin Conditioning, Smoothing, Soothing
Helps hydrate Dry Skin Icon
20
Antimicrobial, Astringent, Skin Conditioning, Soothing, Tonic
21
Skin Conditioning
22
Humectant, Skin Conditioning
0 / 0
Hyaluronic Acid Icon
23
Humectant, Skin Conditioning
Helps with Anti-Aging Icon
24
Astringent, Skin Conditioning, Tonic
25
Skin Conditioning
26
27
Emollient, Emulsion Stabilising
Fatty Alcohol Icon
28
Antioxidant, Masking
Antioxidant Icon
29
Humectant, Masking, Skin Conditioning, Solvent
1 / 0
30
Emollient, Emulsifying
Oil IconNot safe for Fungal Acne Icon
31
Emulsifying
Oil IconNot safe for Fungal Acne Icon
32
Abrasive
Exfoliant Icon
33
Emulsifying
Not safe for Fungal Acne Icon
34
Buffering
35
Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
36
Preservative
0 / 0
Preservative IconParaben IconNon-Reef-Safe IconMay worsen Eczema Icon
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Preservative
Preservative Icon

Ingredients Explained

This product contains 37 ingredients. Click on any ingredient to learn more about it
1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
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What it does: UV Absorber, UV Filter
Community Rating: Very Disliked

Ethylhexyl Methoxycinnamate is an organic compound that provides UVB protection. It often goes by the more common name of octinoxate. It is created from methoxycinnamic acid and 2-ethylhexanol.

Ethylhexyl Methoxycinnamate absorbs UVB rays with wavelengths between 280-320 nm. UV absorbers protect your skin by using chemical reactions to convert UV rays into heat and energy.

UVB (290-320 nm) rays emit more energy than UVA rays. They are capable of damaging DNA, causing sunburns and are thought to be linked to skin cancer.

The state of Hawaii has banned sunscreens containing octinoxate due to its potential impact on coral reefs. More research is needed to bridge gaps in this research. The European Union allows higher levels of octinoxate in sunscreens than the US and Australia.

Ethylhexyl Methoxycinnamate is oil soluble. It is not stable and may lose efficacy when exposed to sunlight.

Learn more about Ethylhexyl Methoxycinnamate
3
What it does: Antimicrobial, Astringent, Masking, Solvent
Community Rating: Very Disliked

Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.

These alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.

Other types of astringent alcohols include:

According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.

Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.

Fatty alcohols come from plant oils such as coconut oil. These can help hydrate the skin and are non-irritating. Some fatty alcohols include cetyl and stearyl alcohol.

Learn more about Alcohol
4
What it does: Emollient, Solvent
Community Rating: Disliked

Isododecane is a fragrance, emollient, and solvent.

As an emollient, it helps your skin stay soft and hydrated. Emollients help trap moisture into your skin.

Isododecane's role as a solvent makes it a great texture enhancer. It spreads smoothly on skin and does not leave a sticky feeling behind. Isododecane also helps prevent color transfer in makeup products.

Isododecane is not absorbed into skin.

Learn more about Isododecane
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What it does: UV Filter
Community Rating: Disliked

We don't have a description for Polysilicone-15.

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What it does: UV Filter
Community Rating: Liked

Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UVA absorber. It is formulated for high UVA protection (320-400 nm) and photostability.

DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%.

UV absorbers are an agent that absorbs UV rays. They protect your skin by using chemical reactions to convert UV rays into heat and energy.

UV rays are a form of electromagnetic radiation from the sun. Other sources include tanning beds and welding torches. Radiation is the emission of energy. UV Rays are divided into 3 groups. UVA (320-400 nm) contains the least amount of energy. They are linked to long term skin damage such as wrinkles and hyperpigmentation. UVB (290-320 nm) rays emit more energy than UVA rays. They are capable of damaging DNA in skin cells. UVB causes sunburns and are thought to be linked to skin cancer. UVC (200-280 nm) contains the highest amount of energy. Our ozone blocks UVC. UVC can also originate from welding torches, mercury lamps, and sanitizing bulbs.

Learn more about Diethylamino Hydroxybenzoyl Hexyl Benzoate
7
What it does: Skin Conditioning, UV Absorber, UV Filter
Community Rating: Liked

You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.

Bemotrizinol has two peak UV absorption peaks ( 310 and 340 nm) and is able to absorb both UV-A and UV-B rays. Skin exposed to UV causes free-radical molecules to form. This ingredient works by preventing the UV from reaching your skin.

It is highly photostable and helps prevent the photodegration of other sunscreen ingredients such as avobenzone.

Bemotrizinol is not approved in the US but is allowed in the EU, Australia, and Asia.

In fact, it is the most effective UV absorber at maximum concentration (measured by SPF) permitted by in the EU.

It is oil-soluble.

Learn more about Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
8
What it does: Abrasive, Absorbent
Community Rating: Disliked

Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.

Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.

Silica is present naturally within the skin during collagen production and when reducing inflammation.

Learn more about Silica
9
What it does: Masking, Solvent
Community Rating: Disliked

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.

As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.

Studies show Dipropylene Glycol is considered safe to use in skincare.

Learn more about Dipropylene Glycol
10
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: Loved

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
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What it does: Emollient

Propylene Glycol Dicaprate is an emollient and emulsifier. It is created from a mixture of fatty acids.

12
What it does: Emollient, Emulsion Stabilising
Community Rating: Very Disliked

We don't have a description for Silica Dimethyl Silylate.

13
What it does: Masking, Perfuming, Skin Conditioning
Community Rating: Mixed

Anthemis Nobilis Flower Extract is from the Roman Chamomile flower.

Anthemis Nobilis Flower Extract helps soothe the skin and contains antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells

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What it does: Masking, Perfuming, Skin Conditioning
Community Rating: Liked

Calendula Officinalis Flower Extract comes from the common Marigold plant. Marigolds contain flavonoids.
Flavonoids are a group of substances found naturally in plants. They possess antioxidant and inflammation properties.

Antioxidants help fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Antioxidants help stabilize free-radicals by donating extra electrons. This may help reduce the signs of aging.

Calendula Officinalis Flower Extract may help soothe your skin by reducing inflammation. Emerging studies show it inhibits NO production safely, therefore reducing inflammation.

Marigolds have been used in traditional medicine throughout Asia and Europe.

Learn more about Calendula Officinalis Flower Extract
15
What it does: Astringent, Skin Conditioning

Centaurea Cyanus Flower extract comes from the cornflower, Centaurea cyanus. The cornflower is native to Europe.

Cornflowers contain antioxidant and anti-inflammatory properties. It contains high amounts of anxiotidants such as Vitamin C. They also contain flavonoids and anthocyanins.

Folk medicine in European cultures used cornflowers to help treat eye inflammation.

Fun fact: Cornflowers were used to determine if love was returned. Young men would wear cornflowers and if the color faded quickly, it meant the love was not reciprocated.

Learn more about Centaurea Cyanus Flower Extract
16
What it does: Masking, Skin Conditioning
Community Rating: Liked

Chamomilla Recutita Flower Extract comes from the Chamomile flower.

Chamomile is rich in antioxidants and has anti-inflammatory properties. Several compounds found in chamomile help with soothing, such as bisbolol.

Antioxidant components in chamomile make it an effective ingredient to help slow the signs of aging. Antioxidants help fight free-radical molecules, or molecules that may damage your skin.

Essential oils from chamomile have been found to improve wound healing due to its antimicrobial properties.

Ancient Greeks and Egyptians used Chamomile to treat skin redness and dryness. Chamomile has also been used to help treat stomach issues.

Learn more about Chamomilla Recutita Flower Extract
17
What it does: Skin Conditioning

We don't have a description for Clematis Vitalba Leaf Extract.

18
What it does: Astringent, Emollient, Soothing, Tonic

We don't have a description for Equisetum Arvense Extract.

19
What it does: Emollient, Skin Conditioning, Smoothing, Soothing
Community Rating: Liked

Fucus Vesiculosus Extract is derived from a type of brown algae.

Algae is an informal term for a group of aquatic organisms that can photosynthesize. It is estimated there are at least 30,000 types of Algae.

Fucus Vesiculosus Extract contains antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.

Fucus Vesiculosus Extract is also rich in sodium, potassium, and amino acids.

Many different types of algae have different benefits.

Learn more about Fucus Vesiculosus Extract
20
What it does: Antimicrobial, Astringent, Skin Conditioning, Soothing, Tonic

We don't have a description for Hedera Helix Extract.

21
What it does: Skin Conditioning

We don't have a description for Hypericum Perforatum Flower Extract.

22
What it does: Humectant, Skin Conditioning
Community Rating: Loved

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
23
What it does: Humectant, Skin Conditioning
Community Rating: Liked

Soluble Collagen can help to reduce the effects of aging.

24
What it does: Astringent, Skin Conditioning, Tonic

We don't have a description for Spiraea Ulmaria Extract.

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What it does: Skin Conditioning

We don't have a description for Tilia Cordata Flower Extract.

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What it does:
Community Rating: Disliked

Acrylates Copolymer is used as a film-forming agent and texture enhancer.

After applied, Acrylates Copolymer forms a thin film cover that helps skin feel more soft. It can help sunscreens become more water-resistant.

It is also used to make a product more thick.

Learn more about Acrylates Copolymer
27
What it does: Emollient, Emulsion Stabilising
Community Rating: Disliked

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.

Behenyl Alcohol is usually derived from the fats in vegetable oils.

In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.

Learn more about Behenyl Alcohol
28
What it does: Antioxidant, Masking
Community Rating: Very Disliked

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

BHT also helps stabilize products and prevent them from degrading. Many products are sensitive to air and light. BHT prevents them from breaking down when exposed.

29
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

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.

30
What it does: Emollient, Emulsifying

Peg-10 Hydrogenated Castor Oil is an oil and isn't fungal acne safe.

31
What it does: Emulsifying
Community Rating: Very Disliked

Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.

As an emulsifier, it helps prevent ingredients from separating. It also helps make the other ingredients more soluble; it is often used to solubilize fragrances. This increases spreadability and elongates shelf life in a product.

Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.

This ingredient may or may not be vegan, depending on the source.

Peg-40 Hydrogenated Castor Oil may not be fungal-acne safe. We recommend speaking with a professional if you have any questions or concerns.

Learn more about Peg-40 Hydrogenated Castor Oil
32
What it does: Abrasive
Community Rating: Very Disliked

Polyethylene is a synthetic ingredient that helps the skin retain moisture. It is a polymer.

Polyethylene is also typically used within product formulations to help bind solid ingredients together and thicken oil-based ingredients. When added to balms and emulsions, it helps increase the melting point temperature.

33
What it does: Emulsifying
Community Rating: Disliked

Polyhydroxystearic Acid is a soft wax made from castor oil.

It is is a texture thickener, emulsifier, and film-former. Emulsifiers prevent ingredients from separating, such as oils and waters.

Polyhydroxystearic Acid may not be fungal acne safe.

Learn more about Polyhydroxystearic Acid
34
What it does: Buffering
Community Rating: Disliked

Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.

Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.

Using high concentrations of Potassium Hydroxide have shown to irritate the skin.

Learn more about Potassium Hydroxide
35
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

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 Gum
36
What it does: Preservative
Community Rating: Very Disliked

Methylparaben is a preservative and is a paraben. It is used to prevent the growth of fungus, mold, and other harmful bacteria. Parabens are chemicals used as preservatives in both cosmetics and food.

Methylparaben can be synthetically created. It can also be found naturally in some fruits, such as blueberries.

Oftentimes, Methylparaben is combined with other parabens to help increase the shelf life.

The safety of Methylparaben is currently being studied. While ongoing studies are looking into the safety of parabens, the results have been very mixed. Some studies have not found Methylparaben to be harmful.

Learn more about Methylparaben
37
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Embed Ingredients

Here's what our community thinks of the 37 ingredients in this product ✨

24% are loved or liked
5% have mixed ratings
46% are disliked or very disliked
24% have no rating yet

When to use

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