COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++ Versus Round Lab Birch Juice Moisturizing Mild-Up Sun Cream SPF 50+ PA++++
Updated on May 07, 2024
Overview
What they are
These products are both sunscreens. They have a total of 8 ingredients in common
Cool Features
They both contain hyaluronic acid, SPF and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens or parabens
What's Inside
They both contain silicones
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
COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++ 28 ingredients
Round Lab Birch Juice Moisturizing Mild-Up Sun Cream SPF 50+ PA++++ 34 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
COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++ 28 ingredients
Round Lab Birch Juice Moisturizing Mild-Up Sun Cream SPF 50+ PA++++ 34 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Aloe Barbadensis Leaf Water
MaskingDiethylhexyl Succinate
EmollientPropanediol
Solvent
Water
Skin ConditioningDrometrizole Trisiloxane
UV Absorber
Ethylhexyl Triazone
UV Absorber
Niacinamide
Smoothing
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Terephthalylidene Dicamphor Sulfonic Acid
UV Absorber
1,2-Hexanediol
Skin Conditioning
Behenyl Alcohol
Emollient
Methyl Trimethicone
Skin Conditioning
Sodium Polyacryloyldimethyl Taurate
Emulsion StabilisingHamamelis Virginiana Leaf Water
Astringent
Tromethamine
BufferingPolyacrylate Crosspolymer-6
Emulsion StabilisingArachidyl Alcohol
EmollientCaprylyl Glycol
EmollientEthylhexylglycerin
Skin ConditioningArachidyl Glucoside
EmulsifyingSodium Metaphosphate
BufferingAdenosine
Skin Conditioning
Tocopherol
Antioxidant
Sodium Hyaluronate
Humectant
Allantoin
Skin Conditioning
Citric Acid
Buffering
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
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
Water
Skin ConditioningZinc Oxide
Cosmetic Colorant
Cyclohexasiloxane
Emollient
Butyloctyl Salicylate
Skin Conditioning
Propanediol
Solvent
Propylheptyl Caprylate
EmollientIsododecane
EmollientCaprylyl Methicone
Skin Conditioning
Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
Skin Conditioning
Methyl Methacrylate Crosspolymer
Methyl Trimethicone
Skin Conditioning
Adansonia Digitata Seed Extract
Skin ConditioningCryptomeria Japonica Leaf Extract
HumectantNelumbo Nucifera Leaf Extract
Skin ConditioningSaccharomyces Ferment Filtrate
Humectant
Glyceryl Glucoside
Humectant
Sodium Hyaluronate
Humectant
Hyaluronic Acid
Humectant
Glycerin
Humectant
Butylene Glycol
Humectant
Triethoxycaprylylsilane
Artemisia Annua Extract
MaskingAnthemis Nobilis Flower Oil
Masking
Pinus Sylvestris Leaf Oil
Masking
Ethylhexylglycerin
Skin ConditioningAscorbic Acid
Antioxidant
Tocopherol
Antioxidant
Glyceryl Caprylate
EmollientCaprylyl Glycol
EmollientPolymethylsilsesquioxane
1,2-Hexanediol
Skin Conditioning
Polyglyceryl-2 Dipolyhydroxystearate
Skin Conditioning
Disteardimonium Hectorite
StabilisingMagnesium Sulfate
Water, Zinc Oxide, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Isododecane, Caprylyl Methicone, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Adansonia Digitata Seed Extract, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Saccharomyces Ferment Filtrate, Glyceryl Glucoside, Sodium Hyaluronate, Hyaluronic Acid, Glycerin, Butylene Glycol, Triethoxycaprylylsilane, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil, Ethylhexylglycerin, Ascorbic Acid, Tocopherol, Glyceryl Caprylate, Caprylyl Glycol, Polymethylsilsesquioxane, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Disteardimonium Hectorite, Magnesium Sulfate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Propanediol is an all-star ingredient. It 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 Water1,2-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
Methyl 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 TrimethiconeCaprylyl 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.
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 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 HyaluronateIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++ 28 ingredients
Round Lab Birch Juice Moisturizing Mild-Up Sun Cream SPF 50+ PA++++ 34 ingredients
Reviews
Here's what our community thinks
COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++ 28 ingredients
Wow holy grail end game status achieved!
DO NOT REFORMULATE this, Cosrx, i swear!!!
Suuuper lightweight. Does exactly as named “light” & “invisible” which are two very important things for me as someone with oily acne prone skin in a humid climate.
Oh and did i mention it makes your makeup glide on top perfectly???!! Looove how this susncreen makes my foundation & concealer glide on so Show more
This sunscreen is so light and easy to spread, I love it! The ingredients look really good too, there's no alcohol, fragrance, or oil, and it doesn't have any ingredients that trigger fungal acne.
It also makes my skin look dewy and it lasts for a long time.
Edit - I've been using it for two months now and I've already bought two more bottles because this is definitely my favorite sunscreen. The Show more
Round Lab Birch Juice Moisturizing Mild-Up Sun Cream SPF 50+ PA++++ 34 ingredients
This mineral sunscreen leaves a soft finish. It isn't as moisturizing as Round Lab's regular/chemical Birch Juice Moisturizing Sun Cream, takes longer to settle in and leaves a slight white cast, as it often is with mineral sunscreens. It also doesn't wash off as easily as the other version, and reapplication isn't as smooth.
Leaves quite a heavy white cast. But didn’t break me out or irritate my skin
