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Kosé Suncut Prodefense Tone Up UV Sunscreen Stick SPF 50+ PA++++ Ingredients Explained

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Published on March 27, 2023

Overview

What it is

Sunscreen with 32 ingredients that contains exfoliants, hyaluronic acid, SPF, Vitamin C and Vitamin E

Suited For

It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, scar healing, dark spots and better texture

Free From

It doesn't contain any harsh alcohols, parabens or sulfates

Fun facts

Kosé is from Japan.

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)
Mineral UV Filter (2)
Vitamin C (2)
Vitamin E
Exfoliators (3)
Hyaluronic Acid

Benefits

Hydrating (2)
Redness Reducing (2)
Skin Texture (2)
Anti-Aging (3)
Dark Spots (2)
Scar Healing (2)
Acne Fighting
Brightening

Concerns

May Worsen Oily Skin (2)
Acne Trigger
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
Masking, Skin Conditioning
2
Cosmetic Colorant, Skin Protecting, UV Absorber, UV Filter
1 / 0
Mineral UV Filter IconNon-Reef-Safe IconHelps fight Acne Icon
3
Cosmetic Colorant
May worsen Eczema Icon
4
Abrasive, Emulsion Stabilising, Masking
Exfoliant IconMay worsen Oily Skin IconNot safe for Fungal Acne Icon
5
Emollient, Skin Protecting, Solvent
0-2 / 0
May worsen Oily Skin IconNot safe for Fungal Acne Icon
6
UV Absorber, UV Filter
0 / 0
Chemical UV Filter IconMay cause irritation IconNon-Reef-Safe Icon
7
Emollient
8
9
Abrasive, Absorbent
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon
10
Emollient, Emulsifying
Not safe for Fungal Acne Icon
11
Silicon Icon
12
UV Filter
Chemical UV Filter Icon
13
Skin Conditioning, UV Absorber, UV Filter
Chemical UV Filter Icon
14
Cosmetic Colorant, UV Absorber, UV Filter
0 / 0
Mineral UV Filter IconNon-Reef-Safe Icon
15
Emollient, Emulsion Stabilising
16
Emollient, Skin Conditioning
Oil IconGood for Scar Healing IconNot safe for Fungal Acne Icon
17
Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconNot safe for Fungal Acne Icon
18
Antioxidant, Emollient, Skin Conditioning
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconNot safe for Fungal Acne Icon
19
Antioxidant, Masking, Skin Conditioning
0-3 / 0-3
Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconMay cause irritation IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon
20
Humectant, Skin Conditioning
0 / 0
Hyaluronic Acid Icon
21
Masking, Tonic
Oil IconEU Allergen Icon
22
Antioxidant, Masking
Antioxidant Icon
23
Masking, Solvent
24
Cleansing, Emulsifying
Bad for Acne Prone Skin IconNot safe for Fungal Acne Icon
25
Emollient, Skin Conditioning, Skin Protecting
1 / 0
Silicon Icon
26
Emollient, Skin Conditioning
1 / 0
Helps hydrate Dry Skin Icon
27
Silicon Icon
28
Emulsifying
Not safe for Fungal Acne Icon
29
Abrasive, Absorbent
Exfoliant Icon
30
Emollient, Emulsifying, Skin Conditioning
Not safe for Fungal Acne Icon
31
Masking, Perfuming
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon
32
Cosmetic Colorant

Ingredients Explained

This product contains 32 ingredients. Click on any ingredient to learn more about it
1
What it does: Masking, Skin Conditioning
Community Rating: Mixed

Triethylhexanoin is created from glycerin and 2-ethylhexanoic acid. It is a solvent and emollient.

As a solvent, Triethylhexanoin helps dissolve ingredients to stable bases or help evenly distribute ingredients throughout the product.

It is also an emollient and helps condition the skin.

Learn more about Triethylhexanoin
2
What it does: Cosmetic Colorant, Skin Protecting, UV Absorber, UV Filter
Community Rating: Liked

Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. While it is most commonly man-made for cosmetics, it can naturally occur in zincite, a rare mineral.

Today, traditional and nano-sized zinc oxide can be found in beauty products. Nano-sized zinc oxide can enhance a product's UV protection. While it is not believed to have a negative effect on skin, nano-zinc oxide can be harmful to coral reefs.

More about harmful reef ingredients here.

Zinc Oxide also has antibacterial and calming properties. It is not water soluble.

Zinc has been used throughout history as an ingredient in paint and medicine. An Indian text from 500BC is believed to list zinc oxide as a salve for open wound. The Ancient Greek physician Dioscorides has also mentioned the use of zinc as an ointment in 1AD.

Learn more about Zinc Oxide
3
What it does: Cosmetic Colorant
Community Rating: Very Disliked

Mica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.

Mica is found to be safe. Trace amounts of heavy metals may be found in mica, but these metals are not harmful in our personal products.

Mica has been used since prehistoric times throughout the world. Ancient Egyptian, Indian, Greek, Roman, Aztec, and Chinese civilizations have used mica.

Mica can be naturally found throughout the world. However, some sources of mica may be controversial. In 2016, mica mined in the Jharkhand state in India was found to be using child labor. However, companies are able to source ethical mica affiliated with international organizations that monitor the mica supply chain.

Learn more about Mica
4
What it does: Abrasive, Emulsion Stabilising, Masking
Community Rating: Very Disliked

Synthetic Wax is created from fossil fuels such as natural gas. It is used to enhance texture, adjust pH, and as an occlusive.

It may also be used as an abrasive ingredient to exfoliate the skin.

Synthetic Wax may not be fungal acne safe.

Learn more about Synthetic Wax
5
What it does: Emollient, Skin Protecting, Solvent
Community Rating: Very Disliked

Paraffinum Liquidum is also known as liquid paraffin. It is a type of highly refined mineral oil.

Like other oils, Paraffinum Liquidum has emollient properties. Emollients help soothe and soften the skin. By creating a barrier to trap moisture within, emollients help keep your skin hydrated.

Paraffinum Liquidum does not irritate the skin and is non-comedogenic. However, this ingredient may not work well for those with oily skin or fungal acne.

If you have concerns about using this ingredient in your routine, we recommend speaking with a professional.

Learn more about Paraffinum Liquidum
6
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
7
What it does: Emollient
Community Rating: Mixed

Cetyl Ethylhexanoate comes from cetearyl alcohol and 2-ethylhexanoic acid.

It is an emollient that adds a velvety feel to products when applied. Emollients help trap moisture into your skin, keeping your skin soft and hydrated.

8
What it does:

We don't have a description for Peg-Crosspolymer.

9
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
10
What it does: Emollient, Emulsifying

Peg-5 Glyceryl Trioleate isn't fungal acne safe.

11
What it does:
Community Rating: Disliked

Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

Learn more about Polymethylsilsesquioxane
12
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
13
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
14
What it does: Cosmetic Colorant, UV Absorber, UV Filter
Community Rating: Mixed

Titanium dioxide is known for its UVA and UVB protection properties. It is non-comedogenic and non-irritating. Titanium Dioxide is a physical sunscreen. Physical sunscreens reflect light and prevent it from reaching your skin.

Protecting your skin against UV radiation can prevent the signs of aging. Sun damage is associated with fine-lines, wrinkles, loss of firmness, and hyperpigmentation. Titanium dioxide can help prevent premature aging.

With modern production, nano-scale or fine-grade titanium dioxide can be easily produced for cosmetics. In sunscreen, titanium dioxide absorbs UV light. Our skin is not able to absorb Titanium dioxide, even nanoparticles.

Titanium itself is the 9th most common element in the Earth's crust. Titanium dioxide is formed when oxygen is introduced and can be found in ores, dust, sand, and soil.

Pure titanium dioxide is a white powder that is used in many products to add or change color.

Learn more about Titanium Dioxide
15
What it does: Emollient, Emulsion Stabilising
Community Rating: Very Disliked

This silica is mainly used to thicken oils and suspend particles in oils. It is not water soluble.

According to the manufacturer, it:

The manufacturer also claims this ingredient to be useful in makeup.

In lipstick formulations, this ingredient improves color payoff, reduces pigment settling, and reduces oil bleeding. This ingredient also improves the grip of powder products such as dry shampoos.

Learn more about Silica Dimethyl Silylate
16
What it does: Emollient, Skin Conditioning
Community Rating: Mixed

Rosehip Oil is a nonfragrant plant oil. Rosehips are a fruit from a rose bush and are edible. This oil helps even out skin tone, has anti-aging properties, and is good for reducing inflammation.

Rosehip contains Vitamin C, Vitamin E, fatty acids and linolenic acids. These nourish your skin barrier. Having hydrated skin may help reduce the appearance of fine-lines and wrinkles.

Another great component of Rosehip Oil is Vitamin A, or retinol. Vitamin A encourages your skin to create more collagen.

Rosehip oil may help with reducing pigmentation. The lycopene and beta-carotene have skin-lightening properties.

Learn more about Rosa Canina Fruit Oil
17
What it does: Antioxidant

Ascorbyl Dipalmitate is a form of Vitamin C, is an antioxidant, and isn't fungal acne safe. It can help to reduce redness, improve skin texture, reduce the effects of aging, and reduce the visibility of dark spots.

18
What it does: Antioxidant, Emollient, Skin Conditioning
Community Rating: Liked

Ascorbyl Tetraisopalmitate is a version of ascorbic acid, or pure Vitamin C.

Ascorbyl Tetraisopalmitate has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.

Ascorbyl Tetraisopalmitate interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.

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

One study found Ascorbyl Tetraisopalmitate to degrade in sunlight, but is stabilized when conbined with acetyl zingerone.

Learn more about Ascorbyl Tetraisopalmitate
19
What it does: Antioxidant, Masking, Skin Conditioning
Community Rating: Liked

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.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Learn more about Tocopherol
20
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
21
What it does: Masking, Tonic
Community Rating: Very Disliked

Lavandula Angustifolia Oil is more commonly known as lavender essential oil. Lavandula Angustifolia is known as the English Lavender and famous for creating purple fields in Provence, France.

Lavender imparts a scent and may sensitize skin. It contains linalool, a known allergen.

While lavender essential oil is commonly used in aromatherapy to help alleviate symptoms of anxiety and stress, more research is needed to confirm this.

However, lavender essential oil has shown to have anti-inflammatory activity due to its prostanoids and histamine content.

Lavandula Angustifolia Oil is the volatile oil obtained from the flowers of the Lavender, Lavandula angustifolia, Labiatae. ISO 8902:2009

Learn more about Lavandula Angustifolia Oil
22
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.

23
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
24
What it does: Cleansing, Emulsifying
Community Rating: Very Disliked

Isostearic acid is a saturated fatty acid. Its structure makes it a great surfactant.

Surfactants help decrease the surface tension between two liquids. This property also makes it an effective emulsifier. Emulsifiers help prevent waters and oils from separating in a product.

Isostearic Acid is created from oleic acid.

This ingredient may not be Malassezia folliculitis, or fungal-acne safe.

Learn more about Isostearic Acid
25
What it does: Emollient, Skin Conditioning, Skin Protecting
Community Rating: Very Disliked

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.

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.

26
What it does: Emollient, Skin Conditioning
Community Rating: Loved

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".

Learn more about Squalane
27

Hydrogen Dimethicone is a type of silicone.

28
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
29
What it does: Abrasive, Absorbent

Hydrated Silica is a type of silicon dioxide. It is called 'hydrated silica' because it is silica with extra bonded water atoms.

It is an absorbent and abrasive, meaning it is exfoliating.

Silica is often used for absorption and can help reduce shine when products are applied.

Learn more about Hydrated Silica
30
What it does: Emollient, Emulsifying, Skin Conditioning

Hydroxylated Lanolin isn't fungal acne safe.

31
What it does: Masking, Perfuming
Community Rating: Very Disliked

Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.

In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Products use parfum often to give products a scent or cover up smells of different ingredients.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum
32
What it does: Cosmetic Colorant
Community Rating: Very Disliked

We don't have a description for Blue 1 Lake.

Embed Ingredients

Here's what our community thinks of the 32 ingredients in this product ✨

22% are loved or liked
13% have mixed ratings
47% are disliked or very disliked
19% have no rating yet
Verified by SkinSort

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The data we've presented on this page has been verified by a member of the SkinSort Team.

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Compared With

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