Skin science article
Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Cosmed Sun Essential Fluid SPF 50 PA++++
Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Cosmed Sun Essential Fluid SPF 50 PA++++ This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This hybrid sunscreen covers the full UV range and blocks ~98% of
Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ Versus Cosmed Sun Essential Fluid SPF 50 PA++++
This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Dibutyl Adipate
Propanediol
Diethylamino Hydroxybenzoyl Hexyl Benzoate
Polymethylsilsesquioxane
Ethylhexyl Triazone
Niacinamide
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol
Coco-Caprylate/Caprate
Caprylyl Methicone
Diethylhexyl Butamido Triazone
Glycerin
1,2-Hexanediol
Butylene Glycol
Oryza Sativa Extract
Oryza Sativa Germ Extract
Camellia Sinensis Leaf Extract
Lactobacillus/Pumpkin Ferment Extract
Bacillus/Soybean Ferment Extract
Saccharum Officinarum Extract
Macrocystis Pyrifera Extract
Cocos Nucifera Fruit Extract
Panax Ginseng Root Extract
Monascus/Rice Ferment
Behenyl Alcohol
Poly C10-30 Alkyl Acrylate
Polyglyceryl-3 Methylglucose Distearate
Decyl Glucoside
Tromethamine
Carbomer
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Sodium Stearoyl Glutamate
Polyacrylate Crosspolymer-6
Adenosine
Xanthan Gum
T-Butyl Alcohol
Tocopherol
Lactobacillus/Rice Ferment
Aspergillus Ferment
Saccharomyces/Rice Ferment Filtrate
Pentylene Glycol
Ethylhexylglycerin
Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Ethylhexyl Triazone, Niacinamide, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Coco-Caprylate/Caprate, Caprylyl Methicone, Diethylhexyl Butamido Triazone, Glycerin, 1,2-Hexanediol, Butylene Glycol, Oryza Sativa Extract, Oryza Sativa Germ Extract, Camellia Sinensis Leaf Extract, Lactobacillus/Pumpkin Ferment Extract, Bacillus/Soybean Ferment Extract, Saccharum Officinarum Extract, Macrocystis Pyrifera Extract, Cocos Nucifera Fruit Extract, Panax Ginseng Root Extract, Monascus/Rice Ferment, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Adenosine, Xanthan Gum, T-Butyl Alcohol, Tocopherol, Lactobacillus/Rice Ferment, Aspergillus Ferment, Saccharomyces/Rice Ferment Filtrate, Pentylene Glycol, Ethylhexylglycerin
C12-15 Alkyl Benzoate
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
C12-16 Alcohols
Hydrogenated Polyisobutene
Polysilicone-15
Dimethicone
Potassium Cetyl Phosphate
Zinc Oxide
Palm Acid
Hydrogenated Lecithin
Caprylyl Glycol
Ectoin
Cannabis Sativa Seed Oil
Squalane
Sodium Polyacrylate
Bisabolol
Helianthus Annuus Seed
Silica
Glycine Soja Lipids
Acacia Senegal Gum
Hippophae Rhamnoides Acid
Rosmarinus Officinalis Leaf Extract
Crocus Chrysanthus Bulb Extract
Water, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Pentylene Glycol, C12-15 Alkyl Benzoate, Caprylyl Methicone, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, C12-16 Alcohols, Hydrogenated Polyisobutene, Polysilicone-15, Dimethicone, Ethylhexyl Triazone, Potassium Cetyl Phosphate, Zinc Oxide, Palm Acid, Hydrogenated Lecithin, Caprylyl Glycol, Ectoin, Cannabis Sativa Seed Oil, Squalane, Sodium Polyacrylate, Bisabolol, Helianthus Annuus Seed, Silica, Glycine Soja Lipids, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Acacia Senegal Gum, Hippophae Rhamnoides Acid, Rosmarinus Officinalis Leaf Extract, Tocopherol, Crocus Chrysanthus Bulb Extract
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.
A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.
Caprylyl Methicone is a synthetic and lightweight silicone fluid. It gives products a silky, dry-touch finish without the heaviness of pure oils.
Though the EU CosIng Database lists this ingredient as a skin conditioner, it is also used for sensory reasons. It spreads easily, cuts greasiness, and reduces tackiness.
This ingredient is volatile which means it will mostly evaporate (but it evaporates slower than older cyclomethicones, like Cyclotetrasiloxane).
Typical concentration ranges from 1-30% depending on if it's being used to tweak the feel of a product or acting as the main emollient.
Ethylhexyl Triazone (aka Octyl Triazone) is an oil-soluble organic UVB filter. It has peak absorption around 314 nm, right in the middle of the UVB range.
This ingredient is described as one of the most effective UVB filters available and small concentrations are enough to deliver a high SPF thanks to its strong UV absorbing power.
Formulators love it for its stability; its ability to filter UV stays practically unchanged even under intense radiation and it can also help boost the photostability of less stable filters like avobenzone.
It's also a great pick for water resistant products because it's insoluble in water and has a good affinity for keratin.
Because it's a big, heavy molecule, the European Scientific Committee has found to to have very low dermal penetration and negative results for allergenicity.
In vitro testing also showed a low absorption rate and clean results on irritation.
Typical use levels are 1-5% with 5% being the maximum in the EU, Japan, and other markets that allow it. However, this ingredient is not approved yet in the US or Canada.
This ingredient is also known as Tinosorb M or Bisoctrizole and is a bit of an overachiever in the sunscreen world.
It's a hybrid broad-spectrum filter that covers UVA and UVB (~280-400nm) with peak absorption around 305nm for UVB or 360nm for UVA (and a tiny bit in blue-light territory as well).
One of its best party tricks is photostability; it doesn't break down with repeated sun exposure and doesn't generate free radicals in the process either. You'll also see it paired with wobbly filters like avobenzone because it helps stabilize them.
The safety profile is assuring as well. Because it's a large molecule, it doesn't easily absorb into skin and rarely causes irritation.
It's approved in the EU, Asia, and Australia up to 10% and most formulas land somewhere in the 2-10% range.
You won't find it as a sunscreen active in the US, but it can make an appearance as a formula-protecting UV-absorber.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
Tocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
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. If you see this, drink a glass of water. Remember to stay hydrated!