COSRX Ultra-Light Invisible Sunscreen SPF50 PA++++

COSRX Ultra-Light Invisible Sunscreen SPF50 PA++++

SPF 50Efficacy100/100IrritancyMedium·4 UV filters
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Works for

4 of 4 advertised claims delivered

Sun protection
SPF 50 · 4 UV filters
Broad spectrum
SPF 50Broad spectrumChemical filtersNo white cast

This product offers a good level of protection against both UVB and UVA rays.

This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Uvinul T
Mexoryl Xl
Uvinul A Plus
Terephthalylidene Dicamphor Sulfonic Acid
FilterCoverageWhat it doesEst. amount
Uvinul TEthylhexyl TriazoneUVB Photo-stable Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet~2.2–3.4%
Mexoryl XlDrometrizole TrisiloxaneUVBUVA2 Photo-stable Mexoryl XL. A UV filter. Effective in the UVB and UVA range. It is stable. Unfortunately, not approved in the US yet~3.2–4.7%
Uvinul A PlusDiethylamino Hydroxybenzoyl Hexyl BenzoateUVA1 Photo-stable Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet~1.5–2.3%
Terephthalylidene Dicamphor Sulfonic AcidUVA1 Photo-stable Ecamsule, Mexoryl SX. A UV filter. Is effective mostly against the UVA rays. It is legally marketed in the US with the FDA approval since 2006, even though the ingredient is not on the official FDA list of the approved sunscreen active ingredients. It is photostable~1.3–1.9%
~ marks concentrations estimated from label position and typical use levels
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-aging
Adenosine, Niacinamide + 1 more
Strong evidence

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine, niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

This product can also help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

AdenosineKey activeEffect: HighMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.55%
NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.2–1.8%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.45%
Moisturizing
Niacinamide, Sodium hyaluronate + 8 more
Strong evidence
What the product description says
“KEY INGREDIENTS Soothes the skin gently with moisture to alleviate heat • Hamamelis Virginiana Soothes the skin gently with moisture to alleviate heat • Niacinamide Prevents UV-induced pigmentation and controls sebum • Tocopherol Antioxidant defense against UV damage Full Ingredients”
Source: Cosrx

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": sodium hyaluronate, caprylyl glycol.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.1–0.35%
NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.2–1.8%
Diethylhexyl succinateKey active· EmollientEffect: MediumHelps soften the upper layer of the skin and create a nice product texture~5.6–8.4%
AdenosineKey activeEffect: MediumMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.55%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.55–1.25%
Aloe barbadensis leaf waterEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but data on its effectiveness is lacking. While the majority of the content is plain water, it can contain some goodies like vitamins, enzymes, minerals, and humectants that help attract water into the skin~23–34%
Arachidyl alcohol· EmollientEffect: LowUsed to soften the upper layer of the skin and create a thicker product consistency~0.35–0.8%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.3–0.75%
AllantoinUnder-dosedEffect: HighHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.1–0.3%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.45%
Evens skin tone
Niacinamide
Strong evidence
What the product description says
“KEY INGREDIENTS Soothes the skin gently with moisture to alleviate heat • Hamamelis Virginiana Soothes the skin gently with moisture to alleviate heat • Niacinamide Prevents UV-induced pigmentation and controls sebum • Tocopherol Antioxidant defense against UV damage Full Ingredients”
Source: Cosrx

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.2–1.8%
Anti-blemish
Not advertised by the brand · Niacinamide, Allantoin
Strong evidence

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.2–1.8%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.1–0.3%

Can it cause trouble?

Irritancy
1 strong irritant: Hamamelis virginiana leaf water
Medium risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Hamamelis virginiana leaf water—High~0.3–0.75%est.
Aloe barbadensis leaf waterTraditionally used to treat sunburns, dermatitis and inflammation, but data on its effectiveness is lacking. While the majority of the content is plain water, it can contain some goodies like vitamins, enzymes, minerals, and humectants that help attract water into the skinMedium~23–34%est.
Drometrizole trisiloxaneMexoryl XL. A UV filter. Effective in the UVB and UVA range. It is stable. Unfortunately, not approved in the US yetMedium~3.2–4.7%est.
Ethylhexyl triazoneUvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yetMedium~2.2–3.4%est.
Diethylamino hydroxybenzoyl hexyl benzoateUvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yetMedium~1.5–2.3%est.
Terephthalylidene dicamphor sulfonic acidEcamsule, Mexoryl SX. A UV filter. Is effective mostly against the UVA rays. It is legally marketed in the US with the FDA approval since 2006, even though the ingredient is not on the official FDA list of the approved sunscreen active ingredients. It is photostableMedium~1.3–1.9%est.
1,2-hexanediolA preservativeMedium~0.4–0.9%est.
Sodium polyacryloyldimethyl taurateHelps oil and water mix togetherMedium~0.35–0.85%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.3–0.75%est.
EthylhexylglycerinA preservativeMedium~0.15–0.55%est.
Sodium metaphosphateA preservativeMedium~0.15–0.5%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05–0.25%est.
Potassium sorbateA preservativeMedium~0.1–0.3%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Ingredients

Filter by role to see what each ingredient is doing.

Aloe barbadensis leaf water~23–34%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but data on its effectiveness is lacking. While the majority of the content is plain water, it can contain some goodies like vitamins, enzymes, minerals, and humectants that help attract water into the skin

More about Aloe barbadensis leaf water
Diethylhexyl succinate~5.6–8.4%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and create a nice product texture

More about Diethylhexyl succinate
Propanediol~4.1–6.2%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Water~3.4–5.1%
Formula
Irritation risk
Low

Plain old water

More about Water
Drometrizole trisiloxane~3.2–4.7%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Mexoryl XL. A UV filter. Effective in the UVB and UVA range. It is stable. Unfortunately, not approved in the US yet

More about Drometrizole trisiloxane
Ethylhexyl triazone~2.2–3.4%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet

More about Ethylhexyl triazone
Niacinamide~1.2–1.8%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Evens skin toneAnti-agingMoisturizingAnti-blemishReduces irritationAnti-inflammatoryAntibacterialReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Diethylamino hydroxybenzoyl hexyl benzoate~1.5–2.3%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet

More about Diethylamino hydroxybenzoyl hexyl benzoate
Terephthalylidene dicamphor sulfonic acid~1.3–1.9%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Ecamsule, Mexoryl SX. A UV filter. Is effective mostly against the UVA rays. It is legally marketed in the US with the FDA approval since 2006, even though the ingredient is not on the official FDA list of the approved sunscreen active ingredients. It is photostable

More about Terephthalylidene dicamphor sulfonic acid
1,2-hexanediol~0.4–0.9%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Behenyl alcohol~0.55–1.25%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Methyl trimethicone~0.4–0.9%
Formula
Irritation risk
Low

A type of silicone that helps create a silky product finish and dissolve other ingredients

More about Methyl trimethicone
Sodium polyacryloyldimethyl taurate~0.35–0.85%
Irritant · medium
Irritation risk
Medium

Helps oil and water mix together

More about Sodium polyacryloyldimethyl taurate
Hamamelis virginiana leaf water~0.3–0.75%
Irritant · high
Tromethamine~0.2–0.75%
Formula
Irritation risk
Low

Helps adjust pH in products

More about Tromethamine
Polyacrylate crosspolymer-6~0.2–0.8%
Formula
Arachidyl alcohol~0.35–0.8%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to soften the upper layer of the skin and create a thicker product consistency

More about Arachidyl alcohol
Caprylyl glycol~0.3–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Ethylhexylglycerin~0.15–0.55%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Arachidyl glucoside~0.15–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Arachidyl glucoside
Sodium metaphosphate~0.15–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metaphosphate
Adenosine~0.15–0.55%
Key active
Irritation risk
Low
Works for
Anti-agingMoisturizingAnti-oxidation

Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)

More about Adenosine
Tocopherol~0.1–0.45%
Formula
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Sodium hyaluronate~0.1–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Allantoin~0.1–0.3%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Citric acid~0.05–0.25%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Sodium benzoate~0.05–0.3%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Potassium sorbate~0.1–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Ingredient list view

Aloe barbadensis leaf water, Diethylhexyl succinate, Propanediol, Water, Drometrizole trisiloxane, Ethylhexyl triazone, Niacinamide, Diethylamino hydroxybenzoyl hexyl benzoate, Terephthalylidene dicamphor sulfonic acid, 1,2-hexanediol, Behenyl alcohol, Methyl trimethicone, Sodium polyacryloyldimethyl taurate, Hamamelis virginiana leaf water, Tromethamine, Polyacrylate crosspolymer-6, Arachidyl alcohol, Caprylyl glycol, Ethylhexylglycerin, Arachidyl glucoside, Sodium metaphosphate, Adenosine, Tocopherol, Sodium hyaluronate, Allantoin, Citric acid, Sodium benzoate, Potassium sorbate

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Cosrx
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
COSRXUltra-Light Invisible Sunscreen SPF50 PA++++YOUR PRODUCTinnisfreeGreen Tea Hyaluronic Hydrating Sun Serum SPF50 Sérum Solairethe Torriden StoreDive-In Low Molecular Hyaluronic Watery Sun Serum PA++++ SPF50+P.CALMWater Barrier Sun Cream
Match—96%95%89%
Price$15.01$24.00+$8.99$23.39+$8.38$14.40−$0.61
Shared key ingredients—6 of 77 of 75 of 7
Key difference—MadecassosidePanthenolMadecassoside
Irritancy Medium Low Low Low
SPFSPF 50SPF 50SPF 50SPF 50
Drying alcohol————
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Product summary

We believe that "COSRX - Ultra-Light Invisible Sunscreen SPF50 PA++++" can provide reliable sun protection based on the ingredients listed. We love that it can protect from both UVA and UVB rays (not all sunscreens with SPF ratings give UVA protection. UVA rays do not cause sunburn, but still damage our skin and lead to early aging).

It should also be hydrating enough to use without an additional moisturizer during the day. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.

Sunscreen filters

This is a so-called "chemical" sunscreen. It means that it uses organic UV filters. They typically offer good sun protection and rarely leave a white cast, but they can be irritating for some people with sensitive skin. Here are the exact UV filters in this sunscreen: uvinul a plus 1.50% - 2.30%, mexoryl xl 3.20% - 4.70%, uvinul t 2.20% - 3.40% and terephthalylidene dicamphor sulfonic acid 1.30% - 1.90%.

Irritation risk

This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of it to be medium. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

What our users say

Based on 2 reviews 100% recommend this product
  • When it comes to comedogenicity, the reviewer found that it does not clog pores.
  • As for the white cast, two out of two reviewers say that the product does not leave a white cast.
  • When it comes to using this sunscreen under makeup, the user found that it pills under a foundation.
  • As for using this sunscreen in the eye area, two out of two reviewers say that it doesn't sting eyes.
Our users describe the finish of this product as matt - dewy, They find the product's texture to be light and In terms of the smell, our users report that light fragrance - no smell.

Price

The product retails for 16.00$ in the United States.

For a detailed price comparison: click here.

COSRX Ultra-Light Invisible Sunscreen SPF50 PA++++
COSRXUltra-Light Invisible Sunscreen SPF50 PA++++

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