Altruist Dermatologist Sunscreen SPF 50 Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++

Altruist Dermatologist Sunscreen SPF 50 Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++

This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

This chemical 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

C12-15 Alkyl Benzoate

Ethylhexyl Stearate

Butyl Methoxydibenzoylmethane

Ethylhexyl Salicylate

Glycerin

Octocrylene

Titanium Dioxide

Potassium Cetyl Phosphate

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

Cetearyl Alcohol

Glyceryl Stearate

Phenylbenzimidazole Sulfonic Acid

Ethylhexyl Triazone

Sodium Stearoyl Glutamate

Phenoxyethanol

Potassium Hydroxide

Silica

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Panthenol

Caprylyl Glycol

Piroctone Olamine

Silver Chloride

Water, C12-15 Alkyl Benzoate, Ethylhexyl Stearate, Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Glycerin, Octocrylene, Titanium Dioxide, Potassium Cetyl Phosphate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Cetearyl Alcohol, Glyceryl Stearate, Phenylbenzimidazole Sulfonic Acid, Ethylhexyl Triazone, Sodium Stearoyl Glutamate, Phenoxyethanol, Potassium Hydroxide, Silica, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Panthenol, Caprylyl Glycol, Piroctone Olamine, Silver Chloride

Dibutyl Adipate

Propanediol

Diethylamino Hydroxybenzoyl Hexyl Benzoate

Polymethylsilsesquioxane

Niacinamide

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

Coco-Caprylate/Caprate

Caprylyl Methicone

Diethylhexyl Butamido Triazone

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

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

Reviews

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.

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.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Sodium Stearoyl Glutamate is an amino-acid based emulsifier. It is made by combining stearic acid with L-glutamic acid and neutralizing it to a sodium salt.

As an emulsifier, it works mainly as an oil-in-water one and helps keep the oil and water in your formulas blended. It also contributes to a smooth, non-greasy skin feel.

This ingredient is biodegradable and commonly available in natural/COSMOS-certified grades.

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!

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