

COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++
A highly rated cruelty-free sunscreen that contains hyaluronic acid, niacinamide, spf and vitamin e.
Overview
What it is
Sunscreen with 28 ingredients that contains hyaluronic acid, niacinamide, SPF and Vitamin E
Cool Features
It is cruelty-free, fungal acne (malassezia) safe, and reef safe
Suited For
It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots
Free From
It doesn't contain any harsh alcohols, common allergens, fragrances, oils, parabens or sulfates
Fun facts
COSRX is from South Korea. This product is used in 1064 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.
About this product
Ingredients List
Dive into the full list of ingredients.
Aloe Barbadensis Leaf Water
MaskingDiethylhexyl Succinate
EmollientPropanediol
SolventWater
Skin ConditioningDrometrizole Trisiloxane
UV AbsorberEthylhexyl Triazone
UV AbsorberNiacinamide
SmoothingDiethylamino Hydroxybenzoyl Hexyl Benzoate
UV FilterTerephthalylidene Dicamphor Sulfonic Acid
UV Absorber1,2-Hexanediol
Skin ConditioningBehenyl Alcohol
EmollientMethyl Trimethicone
Skin ConditioningSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingHamamelis Virginiana Leaf Water
AstringentTromethamine
BufferingPolyacrylate Crosspolymer-6
Emulsion StabilisingArachidyl Alcohol
EmollientCaprylyl Glycol
EmollientEthylhexylglycerin
Skin ConditioningArachidyl Glucoside
EmulsifyingSodium Metaphosphate
BufferingAdenosine
Skin ConditioningTocopherol
AntioxidantSodium Hyaluronate
HumectantAllantoin
Skin ConditioningCitric Acid
BufferingSodium Benzoate
MaskingPotassium Sorbate
PreservativeAloe 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
Key Ingredients
Benefits
Ingredients Explained
Aloe Barbadensis Leaf Water is an aqueous solution of the steam distillate obtained from the leaves of the aloe, Aloe barbadensis, Liliaceae.
Aloe contains the antioxidants Vitamins A, C, and E. These vitamins neutralize free radicals.
It also contains sugars in the form of monosaccharides and polysaccharides, folic acid, choline, many common minerals such as calcium, 12 anthraquinones, fatty acids, amino acids, and Vitamin B12.
Aloe is known to be anti-inflammatory, moisturizing, antiseptic, and healing.
Aloe should not replace your sunscreen, as it does not offer UV protection.
Learn more about Aloe Barbadensis Leaf WaterDiethylhexyl Succinate comes from succinic acid and 2-ethylhexyl alcohol.
It is a synthetic emollient.
Another all-star ingredient is propanediol. Propanediol softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolWater. 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 WaterDrometrizole Trisiloxane is a UV filter that provides both UV-A (344 nm) and UV-B (303 nm) protection.
This ingredient is photostable and studies show it to be generally safe and effective. The compound Meroxyl XL is owned by L'Oreal while Drometrizole trisiloxane can be found in other sunscreen brands.
It is currently approved for use in the EU, Canada, Australia, and Japan. However, it is not yet approved for use in the US.
This ingredient is often used with other sunscreen ingredients, such as Ecamsule.
Learn more about Drometrizole TrisiloxaneEthylhexyl Triazone is a modern chemical sunscreen that protects from UV-B radiation.
It is the most effective of existing UV-B filters, as it provides the highest level of photo-stable absorption. It protects from the entire UV-B range (280 to 320nm), with it's highest level of protection at 314nm.
Ethylhexyl Triazone is oil soluble, oderless and colorless, which mean it is able to be incorporated into a variety of different formulations.
It is not currently available within the United States due to slow changing FDA regulations. Outside of the US, it is used in formulations at concentrations up to 5%.
Learn more about Ethylhexyl TriazoneNiacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamideDiethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UVA absorber. It is formulated for high UVA protection (320-400 nm).
DHHB is well-liked for:
DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%. Unfortunately, it has not been approved for use in the US or Canada due to slow regulatory processes.
This ingredient is soluble in oils, fats, and lipids.
It is an UV absorber. UV absorbers are an agent that absorbs UV rays to protect your skin. They use chemical reactions to convert UV rays into heat and energy.
Learn more about Diethylamino Hydroxybenzoyl Hexyl BenzoateEcamsule is a UV-A absorber (290–400 nm) patented by L'Oreal. It is derived from benzylidene camphor, making it highly photostable.
Ecamsule is able to prevent UV from reaching the skin. It absorbs UV and releases it as thermal energy.
It does this by:
The pH of ecamsule needs to be neutralized due to it being an acid. Triethanolamine is a pH adjusting ingredient often used with ecamsule.
This sunscreen ingredient is approved for use in the EU, Canada, and Asia. You can find this ingredient only in sunscreen formulations. This is due to the US considering sunscreen as an OTC drug instead of a cosmetic product.
Learn more about Terephthalylidene Dicamphor Sulfonic Acid1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
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 AlcoholMethyl Trimethicone is a type of silicone. It is a solvent and emulsifier.
Solvents are used to keep ingredients together in a product. They can help dissolve ingredients to stable bases or help evenly distribute ingredients throughout the product.
Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.
Methyl Trimethicone does not get absorbed into the skin.
Learn more about Methyl TrimethiconeSodium Polyacryloyldimethyl Taurate is a polymer and used to help stabilize other ingredients.
Emulsion stabilizers hold ingredients together, helping to create an even texture throughout the product.
Sodium Polyacryloyldimethyl Taurate can also be used to thicken the texture.
Learn more about Sodium Polyacryloyldimethyl TaurateHamamelis Virginiana Leaf Water comes from the witch hazel plant. The witch hazel plant is native to eastern North America.
Witch Hazel is an astringent, anti-inflammatory, antioxidant, and antibacterial ingredient. The tannin in witch hazel has a drying effect when used on skin and constricts proteins. This helps minimize the look of large pores. The tannins present and the fragrance may be sensitizing. The catechins in witch hazel have anti-inflammatory properties while the gallic acid is antibacterial.
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 TromethaminePolyacrylate Crosspolymer-6 is a texture enhancer and pH adjuster.
It is be used to thicken water-based products and create a gel-texture with a velvet feel.
One manufacturer claims this ingredient to have a pH range of 2-8 and to be biodegradable.
Learn more about Polyacrylate Crosspolymer-6Arachidyl Alcohol is a fatty alcohol made from peanut oil. It is an emollient, emulsifier, and thickener.
You'll most likely find this ingredient as an emulsifier in water-based cosmetics.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolEthylhexylglycerin (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.
We don't have a description for Arachidyl Glucoside yet.
We don't have a description for Sodium Metaphosphate yet.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineTocopherol (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 TocopherolSodium 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 HyaluronateAllantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoatePotassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateReviews
Where it's from
COSRX is a Korean brand
50 SPF Rating
With an SPF rating of 50, this product protects against 98.0% of UVB rays
Often compared with
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about us· Updated May 7, 2024 • Added by caterica